75977677956 has 12 divisors (see below), whose sum is σ = 177281248592. Its totient is φ = 25325892648.

The previous prime is 75977677913. The next prime is 75977678003. The reversal of 75977677956 is 65977677957.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 3165736570 + ... + 3165736593.

Almost surely, 2^75977677956 is an apocalyptic number.

It is an amenable number.

75977677956 is an abundant number, since it is smaller than the sum of its proper divisors (101303570636).

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

75977677956 is a wasteful number, since it uses less digits than its factorization.

75977677956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6331473170 (or 6331473168 counting only the distinct ones).

The product of its digits is 1225230300, while the sum is 75.

Subtracting from 75977677956 its reverse (65977677957), we obtain a palindrome (9999999999).

The spelling of 75977677956 in words is "seventy-five billion, nine hundred seventy-seven million, six hundred seventy-seven thousand, nine hundred fifty-six".