13712578657 has 8 divisors (see below), whose sum is σ = 14156536320. Its totient is φ = 13268722080.

The previous prime is 13712578603. The next prime is 13712578667. The reversal of 13712578657 is 75687521731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13712578657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13712578667) 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, 329844 + ... + 369082.

It is an arithmetic number, because the mean of its divisors is an integer number (1769567040).

Almost surely, 2^13712578657 is an apocalyptic number.

It is an amenable number.

13712578657 is a deficient number, since it is larger than the sum of its proper divisors (443957663).

13712578657 is a wasteful number, since it uses less digits than its factorization.

13712578657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50543.

The product of its digits is 2469600, while the sum is 52.

The spelling of 13712578657 in words is "thirteen billion, seven hundred twelve million, five hundred seventy-eight thousand, six hundred fifty-seven".