454545505040 has 80 divisors (see below), whose sum is σ = 1153494046656. Its totient is φ = 165203059200.

The previous prime is 454545505021. The next prime is 454545505049. The reversal of 454545505040 is 40505545454.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×454545505040² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (454545505049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1565534 + ... + 1833026.

Almost surely, 2^454545505040 is an apocalyptic number.

454545505040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 454545505040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576747023328).

454545505040 is an abundant number, since it is smaller than the sum of its proper divisors (698948541616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

454545505040 is a wasteful number, since it uses less digits than its factorization.

454545505040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269448 (or 269442 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 41.

The spelling of 454545505040 in words is "four hundred fifty-four billion, five hundred forty-five million, five hundred five thousand, forty".