12947038617 has 8 divisors (see below), whose sum is σ = 17819580160. Its totient is φ = 8352928080.

The previous prime is 12947038613. The next prime is 12947038633. The reversal of 12947038617 is 71683074921.

It is a happy number.

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

It is not a de Polignac number, because 12947038617 - 2² = 12947038613 is a prime.

It is a super-3 number, since 3×12947038617³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12947038613) 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, 69607642 + ... + 69607827.

It is an arithmetic number, because the mean of its divisors is an integer number (2227447520).

Almost surely, 2^12947038617 is an apocalyptic number.

It is an amenable number.

12947038617 is a deficient number, since it is larger than the sum of its proper divisors (4872541543).

12947038617 is a wasteful number, since it uses less digits than its factorization.

12947038617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139215503.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 12947038617 in words is "twelve billion, nine hundred forty-seven million, thirty-eight thousand, six hundred seventeen".