56297638077 has 8 divisors (see below), whose sum is σ = 79014228960. Its totient is φ = 35556402960.

The previous prime is 56297638031. The next prime is 56297638087. The reversal of 56297638077 is 77083679265.

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

It is not a de Polignac number, because 56297638077 - 2⁶ = 56297638013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56297638077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56297638087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493838874 + ... + 493838987.

It is an arithmetic number, because the mean of its divisors is an integer number (9876778620).

Almost surely, 2^56297638077 is an apocalyptic number.

56297638077 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

56297638077 is a deficient number, since it is larger than the sum of its proper divisors (22716590883).

56297638077 is a wasteful number, since it uses less digits than its factorization.

56297638077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987677883.

The product of its (nonzero) digits is 26671680, while the sum is 60.

The spelling of 56297638077 in words is "fifty-six billion, two hundred ninety-seven million, six hundred thirty-eight thousand, seventy-seven".