56391019365 has 16 divisors (see below), whose sum is σ = 92323902528. Its totient is φ = 29375786496.

The previous prime is 56391019301. The next prime is 56391019387.

56391019365 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56391019365 - 2⁶ = 56391019301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43713324 + ... + 43714613.

It is an arithmetic number, because the mean of its divisors is an integer number (5770243908).

Almost surely, 2^56391019365 is an apocalyptic number.

It is an amenable number.

56391019365 is a deficient number, since it is larger than the sum of its proper divisors (35932883163).

56391019365 is a wasteful number, since it uses less digits than its factorization.

56391019365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87427988.

The product of its (nonzero) digits is 656100, while the sum is 48.

The spelling of 56391019365 in words is "fifty-six billion, three hundred ninety-one million, nineteen thousand, three hundred sixty-five".