45681099520 has 72 divisors (see below), whose sum is σ = 125052034464. Its totient is φ = 15662088192.

The previous prime is 45681099487. The next prime is 45681099539. The reversal of 45681099520 is 2599018654.

It is a super-2 number, since 2×45681099520² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2540209 + ... + 2558128.

It is an arithmetic number, because the mean of its divisors is an integer number (1736833812).

Almost surely, 2^45681099520 is an apocalyptic number.

45681099520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45681099520 is an abundant number, since it is smaller than the sum of its proper divisors (79370934944).

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

45681099520 is an equidigital number, since it uses as much as digits as its factorization.

45681099520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5098365 (or 5098351 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 45681099520 in words is "forty-five billion, six hundred eighty-one million, ninety-nine thousand, five hundred twenty".