75138013568 has 32 divisors (see below), whose sum is σ = 150009663960. Its totient is φ = 37488529408.

The previous prime is 75138013553. The next prime is 75138013619. The reversal of 75138013568 is 86531083157.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568721 + ... + 688272.

Almost surely, 2^75138013568 is an apocalyptic number.

It is an amenable number.

75138013568 is a deficient number, since it is larger than the sum of its proper divisors (74871650392).

75138013568 is a wasteful number, since it uses less digits than its factorization.

75138013568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257474 (or 1257462 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 75138013568 in words is "seventy-five billion, one hundred thirty-eight million, thirteen thousand, five hundred sixty-eight".