75906899638 has 16 divisors (see below), whose sum is σ = 114534191520. Its totient is φ = 37728896256.

The previous prime is 75906899623. The next prime is 75906899659. The reversal of 75906899638 is 83699860957.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4311718 + ... + 4329286.

It is an arithmetic number, because the mean of its divisors is an integer number (7158386970).

Almost surely, 2^75906899638 is an apocalyptic number.

75906899638 is a deficient number, since it is larger than the sum of its proper divisors (38627291882).

75906899638 is a wasteful number, since it uses less digits than its factorization.

75906899638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30231.

The product of its (nonzero) digits is 176359680, while the sum is 70.

The spelling of 75906899638 in words is "seventy-five billion, nine hundred six million, eight hundred ninety-nine thousand, six hundred thirty-eight".