45454582509 has 24 divisors (see below), whose sum is σ = 70593801408. Its totient is φ = 25939851840.

The previous prime is 45454582469. The next prime is 45454582517. The reversal of 45454582509 is 90528545454.

It is not a de Polignac number, because 45454582509 - 2⁸ = 45454582253 is a prime.

It is a super-2 number, since 2×45454582509² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45454582529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91297 + ... + 315030.

It is an arithmetic number, because the mean of its divisors is an integer number (2941408392).

Almost surely, 2^45454582509 is an apocalyptic number.

45454582509 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

45454582509 is a deficient number, since it is larger than the sum of its proper divisors (25139218899).

45454582509 is a wasteful number, since it uses less digits than its factorization.

45454582509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407105 (or 407098 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 51.

The spelling of 45454582509 in words is "forty-five billion, four hundred fifty-four million, five hundred eighty-two thousand, five hundred nine".