56286477993 has 16 divisors (see below), whose sum is σ = 76674306240. Its totient is φ = 36720178176.

The previous prime is 56286477983. The next prime is 56286478019. The reversal of 56286477993 is 39977468265.

It is not a de Polignac number, because 56286477993 - 2²⁸ = 56018042537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56286477983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060755 + ... + 1112552.

It is an arithmetic number, because the mean of its divisors is an integer number (4792144140).

Almost surely, 2^56286477993 is an apocalyptic number.

It is an amenable number.

56286477993 is a deficient number, since it is larger than the sum of its proper divisors (20387828247).

56286477993 is a wasteful number, since it uses less digits than its factorization.

56286477993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173496.

The product of its digits is 137168640, while the sum is 66.

The spelling of 56286477993 in words is "fifty-six billion, two hundred eighty-six million, four hundred seventy-seven thousand, nine hundred ninety-three".