56486913993 has 6 divisors (see below), whose sum is σ = 81592209114. Its totient is φ = 37657942656.

The previous prime is 56486913991. The next prime is 56486913997. The reversal of 56486913993 is 39931968465.

56486913993 is a `hidden beast` number, since 56 + 486 + 9 + 13 + 9 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53706672009 + 2780241984 = 231747^2 + 52728^2 .

It is not a de Polignac number, because 56486913993 - 2¹ = 56486913991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56486913993.

It is not an unprimeable number, because it can be changed into a prime (56486913991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3138161880 + ... + 3138161897.

It is an arithmetic number, because the mean of its divisors is an integer number (13598701519).

Almost surely, 2^56486913993 is an apocalyptic number.

It is an amenable number.

56486913993 is a deficient number, since it is larger than the sum of its proper divisors (25105295121).

56486913993 is a wasteful number, since it uses less digits than its factorization.

56486913993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276323783 (or 6276323780 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 63.

The spelling of 56486913993 in words is "fifty-six billion, four hundred eighty-six million, nine hundred thirteen thousand, nine hundred ninety-three".