56251886678 has 8 divisors (see below), whose sum is σ = 90868432368. Its totient is φ = 25962409224.

The previous prime is 56251886671. The next prime is 56251886693. The reversal of 56251886678 is 87668815265.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 56251886678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56251886671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081767026 + ... + 1081767077.

It is an arithmetic number, because the mean of its divisors is an integer number (11358554046).

Almost surely, 2^56251886678 is an apocalyptic number.

56251886678 is a deficient number, since it is larger than the sum of its proper divisors (34616545690).

56251886678 is a wasteful number, since it uses less digits than its factorization.

56251886678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163534118.

The product of its digits is 38707200, while the sum is 62.

The spelling of 56251886678 in words is "fifty-six billion, two hundred fifty-one million, eight hundred eighty-six thousand, six hundred seventy-eight".