11658979317 has 16 divisors (see below), whose sum is σ = 16193999360. Its totient is φ = 7452907200.

The previous prime is 11658979307. The next prime is 11658979327. The reversal of 11658979317 is 71397985611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11658979307) and next prime (11658979327).

It is not a de Polignac number, because 11658979317 - 2¹² = 11658975221 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 (11658979307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564934 + ... + 585207.

It is an arithmetic number, because the mean of its divisors is an integer number (1012124960).

Almost surely, 2^11658979317 is an apocalyptic number.

It is an amenable number.

11658979317 is a deficient number, since it is larger than the sum of its proper divisors (4535020043).

11658979317 is a wasteful number, since it uses less digits than its factorization.

11658979317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150284.

The product of its digits is 2857680, while the sum is 57.

The spelling of 11658979317 in words is "eleven billion, six hundred fifty-eight million, nine hundred seventy-nine thousand, three hundred seventeen".