75897939987 has 12 divisors (see below), whose sum is σ = 109639644400. Its totient is φ = 50594340528.

The previous prime is 75897939977. The next prime is 75897940003. The reversal of 75897939987 is 78993979857.

75897939987 is a `hidden beast` number, since 7 + 5 + 89 + 79 + 399 + 87 = 666.

It is not a de Polignac number, because 75897939987 - 2⁸ = 75897939731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75897939937) 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 11 ways as a sum of consecutive naturals, for example, 243112 + ... + 459237.

Almost surely, 2^75897939987 is an apocalyptic number.

75897939987 is a deficient number, since it is larger than the sum of its proper divisors (33741704413).

75897939987 is a wasteful number, since it uses less digits than its factorization.

75897939987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714362 (or 714359 counting only the distinct ones).

The product of its digits is 2160406080, while the sum is 81.

The spelling of 75897939987 in words is "seventy-five billion, eight hundred ninety-seven million, nine hundred thirty-nine thousand, nine hundred eighty-seven".