75388139524 has 24 divisors (see below), whose sum is σ = 133023867200. Its totient is φ = 37381914720.

The previous prime is 75388139507. The next prime is 75388139573. The reversal of 75388139524 is 42593188357.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437194 + ... + 584734.

Almost surely, 2^75388139524 is an apocalyptic number.

It is an amenable number.

75388139524 is a deficient number, since it is larger than the sum of its proper divisors (57635727676).

75388139524 is a wasteful number, since it uses less digits than its factorization.

75388139524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148603 (or 148601 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The spelling of 75388139524 in words is "seventy-five billion, three hundred eighty-eight million, one hundred thirty-nine thousand, five hundred twenty-four".