8713779508657 has 8 divisors (see below), whose sum is σ = 8727430769792. Its totient is φ = 8700131257200.

The previous prime is 8713779508631. The next prime is 8713779508669. The reversal of 8713779508657 is 7568059773178.

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

It is a cyclic number.

It is not a de Polignac number, because 8713779508657 - 2²⁷ = 8713645290929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8713779508657.

It is not an unprimeable number, because it can be changed into a prime (8713779508457) 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, 5077963 + ... + 6573679.

It is an arithmetic number, because the mean of its divisors is an integer number (1090928846224).

Almost surely, 2^{8713779508657} is an apocalyptic number.

It is an amenable number.

8713779508657 is a deficient number, since it is larger than the sum of its proper divisors (13651261135).

8713779508657 is a wasteful number, since it uses less digits than its factorization.

8713779508657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504839.

The product of its (nonzero) digits is 622339200, while the sum is 73.

The spelling of 8713779508657 in words is "eight trillion, seven hundred thirteen billion, seven hundred seventy-nine million, five hundred eight thousand, six hundred fifty-seven".