56821641792 has 56 divisors (see below), whose sum is σ = 150538537632. Its totient is φ = 18915609600.

The previous prime is 56821641697. The next prime is 56821641809. The reversal of 56821641792 is 29714612865.

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 7 ways as a sum of consecutive naturals, for example, 48334 + ... + 340557.

It is an arithmetic number, because the mean of its divisors is an integer number (2688188172).

Almost surely, 2^56821641792 is an apocalyptic number.

It is an amenable number.

56821641792 is an abundant number, since it is smaller than the sum of its proper divisors (93716895840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56821641792 is a wasteful number, since it uses less digits than its factorization.

56821641792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389667 (or 389657 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The spelling of 56821641792 in words is "fifty-six billion, eight hundred twenty-one million, six hundred forty-one thousand, seven hundred ninety-two".