56397769642 has 8 divisors (see below), whose sum is σ = 84619785600. Its totient is φ = 28191174444.

The previous prime is 56397769627. The next prime is 56397769663. The reversal of 56397769642 is 24696779365.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 3846042 + ... + 3860677.

It is an arithmetic number, because the mean of its divisors is an integer number (10577473200).

Almost surely, 2^56397769642 is an apocalyptic number.

56397769642 is a deficient number, since it is larger than the sum of its proper divisors (28222015958).

56397769642 is a wasteful number, since it uses less digits than its factorization.

56397769642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7710380.

The product of its digits is 102876480, while the sum is 64.

The spelling of 56397769642 in words is "fifty-six billion, three hundred ninety-seven million, seven hundred sixty-nine thousand, six hundred forty-two".