56576438386 has 32 divisors (see below), whose sum is σ = 91703849328. Its totient is φ = 26023468800.

The previous prime is 56576438353. The next prime is 56576438419. The reversal of 56576438386 is 68383467565.

It is an interprime number because it is at equal distance from previous prime (56576438353) and next prime (56576438419).

It can be written as a sum of positive squares in 8 ways, for example, as 3800106025 + 52776332361 = 61645^2 + 229731^2 .

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 15 ways as a sum of consecutive naturals, for example, 10149096 + ... + 10154668.

Almost surely, 2^56576438386 is an apocalyptic number.

56576438386 is a deficient number, since it is larger than the sum of its proper divisors (35127410942).

56576438386 is a wasteful number, since it uses less digits than its factorization.

56576438386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846.

The product of its digits is 87091200, while the sum is 61.

The spelling of 56576438386 in words is "fifty-six billion, five hundred seventy-six million, four hundred thirty-eight thousand, three hundred eighty-six".