76891474256 has 20 divisors (see below), whose sum is σ = 148981536000. Its totient is φ = 38444626272.

The previous prime is 76891474207. The next prime is 76891474259. The reversal of 76891474256 is 65247419867.

It is a super-2 number, since 2×76891474256² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76891474195 and 76891474204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76891474259) by changing a digit.

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, 1012955 + ... + 1086213.

It is an arithmetic number, because the mean of its divisors is an integer number (7449076800).

Almost surely, 2^76891474256 is an apocalyptic number.

It is an amenable number.

76891474256 is a deficient number, since it is larger than the sum of its proper divisors (72090061744).

76891474256 is a wasteful number, since it uses less digits than its factorization.

76891474256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138866 (or 138860 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 59.

The spelling of 76891474256 in words is "seventy-six billion, eight hundred ninety-one million, four hundred seventy-four thousand, two hundred fifty-six".