12913946517 has 8 divisors (see below), whose sum is σ = 17220299296. Its totient is φ = 8608445712.

The previous prime is 12913946449. The next prime is 12913946527. The reversal of 12913946517 is 71564931921.

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

It is not a de Polignac number, because 12913946517 - 2⁷ = 12913946389 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 (12913946527) 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, 176743 + ... + 238884.

It is an arithmetic number, because the mean of its divisors is an integer number (2152537412).

Almost surely, 2^12913946517 is an apocalyptic number.

It is an amenable number.

12913946517 is a deficient number, since it is larger than the sum of its proper divisors (4306352779).

12913946517 is a wasteful number, since it uses less digits than its factorization.

12913946517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425987.

The product of its digits is 408240, while the sum is 48.

The spelling of 12913946517 in words is "twelve billion, nine hundred thirteen million, nine hundred forty-six thousand, five hundred seventeen".