56877001947 has 6 divisors (see below), whose sum is σ = 82155669492. Its totient is φ = 37918001292.

The previous prime is 56877001931. The next prime is 56877001957. The reversal of 56877001947 is 74910077865.

56877001947 is a `hidden beast` number, since 568 + 7 + 70 + 0 + 1 + 9 + 4 + 7 = 666.

It is not a de Polignac number, because 56877001947 - 2⁴ = 56877001931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56877001893 and 56877001902.

It is not an unprimeable number, because it can be changed into a prime (56877001957) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3159833433 + ... + 3159833450.

It is an arithmetic number, because the mean of its divisors is an integer number (13692611582).

Almost surely, 2^56877001947 is an apocalyptic number.

56877001947 is a deficient number, since it is larger than the sum of its proper divisors (25278667545).

56877001947 is a wasteful number, since it uses less digits than its factorization.

56877001947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6319666889 (or 6319666886 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The spelling of 56877001947 in words is "fifty-six billion, eight hundred seventy-seven million, one thousand, nine hundred forty-seven".