445727556624 has 40 divisors (see below), whose sum is σ = 1315957549120. Its totient is φ = 127350730368.

The previous prime is 445727556623. The next prime is 445727556641. The reversal of 445727556624 is 426655727544.

It is a happy number.

It is a super-2 number, since 2×445727556624² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (445727556623) 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 7 ways as a sum of consecutive naturals, for example, 663284719 + ... + 663285390.

It is an arithmetic number, because the mean of its divisors is an integer number (32898938728).

Almost surely, 2^445727556624 is an apocalyptic number.

It is an amenable number.

445727556624 is an abundant number, since it is smaller than the sum of its proper divisors (870229992496).

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

445727556624 is a wasteful number, since it uses less digits than its factorization.

445727556624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326570127 (or 1326570121 counting only the distinct ones).

The product of its digits is 56448000, while the sum is 57.

The spelling of 445727556624 in words is "four hundred forty-five billion, seven hundred twenty-seven million, five hundred fifty-six thousand, six hundred twenty-four".