56677637510517 has 4 divisors (see below), whose sum is σ = 75570183347360. Its totient is φ = 37785091673676.

The previous prime is 56677637510503. The next prime is 56677637510537. The reversal of 56677637510517 is 71501573677665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56677637510517 - 2³⁶ = 56608918033781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56677637510537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9446272918417 + ... + 9446272918422.

It is an arithmetic number, because the mean of its divisors is an integer number (18892545836840).

Almost surely, 2^{56677637510517} is an apocalyptic number.

It is an amenable number.

56677637510517 is a deficient number, since it is larger than the sum of its proper divisors (18892545836843).

56677637510517 is a wasteful number, since it uses less digits than its factorization.

56677637510517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18892545836842.

The product of its (nonzero) digits is 194481000, while the sum is 66.

The spelling of 56677637510517 in words is "fifty-six trillion, six hundred seventy-seven billion, six hundred thirty-seven million, five hundred ten thousand, five hundred seventeen".