56135798478 has 24 divisors (see below), whose sum is σ = 121719826800. Its totient is φ = 18697738464.

The previous prime is 56135798431. The next prime is 56135798483. The reversal of 56135798478 is 87489753165.

56135798478 is a `hidden beast` number, since 5 + 6 + 13 + 579 + 8 + 47 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

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, 1158463 + ... + 1205946.

It is an arithmetic number, because the mean of its divisors is an integer number (5071659450).

Almost surely, 2^56135798478 is an apocalyptic number.

56135798478 is an abundant number, since it is smaller than the sum of its proper divisors (65584028322).

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

56135798478 is a wasteful number, since it uses less digits than its factorization.

56135798478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365736 (or 2365733 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 63.

The spelling of 56135798478 in words is "fifty-six billion, one hundred thirty-five million, seven hundred ninety-eight thousand, four hundred seventy-eight".