75440645632 has 40 divisors (see below), whose sum is σ = 164437044552. Its totient is φ = 34291200000.

The previous prime is 75440645611. The next prime is 75440645669. The reversal of 75440645632 is 23654604457.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6691869 + ... + 6703132.

Almost surely, 2^75440645632 is an apocalyptic number.

It is an amenable number.

75440645632 is an abundant number, since it is smaller than the sum of its proper divisors (88996398920).

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

75440645632 is a wasteful number, since it uses less digits than its factorization.

75440645632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13395030 (or 13395014 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 46.

The spelling of 75440645632 in words is "seventy-five billion, four hundred forty million, six hundred forty-five thousand, six hundred thirty-two".