45454545454545 has 48 divisors (see below), whose sum is σ = 79134640416000. Its totient is φ = 24135772227840.

The previous prime is 45454545454523. The next prime is 45454545454553. The reversal of 45454545454545 is 54545454545454.

45454545454545 is a `hidden beast` number, since 4 + 5 + 4 + 5 + 4 + 5 + 4 + 545 + 45 + 45 = 666.

45454545454545 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 45454545454545 - 2¹⁶ = 45454545389009 is a prime.

It is a super-2 number, since 2×45454545454545² (a number of 28 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

45454545454545 is an undulating number in base 10.

45454545454545 is a modest number, since divided by 45454545 gives 454545 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49545450 + ... + 50454540.

It is an arithmetic number, because the mean of its divisors is an integer number (1648638342000).

Almost surely, 2^{45454545454545} is an apocalyptic number.

45454545454545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45454545454545 is a deficient number, since it is larger than the sum of its proper divisors (33680094961455).

45454545454545 is a wasteful number, since it uses less digits than its factorization.

45454545454545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913990 (or 913987 counting only the distinct ones).

The product of its digits is 1280000000, while the sum is 63.

Adding to 45454545454545 its reverse (54545454545454), we get a palindrome (99999999999999).

Subtracting 45454545454545 from its reverse (54545454545454), we obtain a palindrome (9090909090909).

It can be divided in two parts, 4545454 and 5454545, that added together give a palindrome (9999999).

The spelling of 45454545454545 in words is "forty-five trillion, four hundred fifty-four billion, five hundred forty-five million, four hundred fifty-four thousand, five hundred forty-five".