12917340994 has 4 divisors (see below), whose sum is σ = 19376011494. Its totient is φ = 6458670496.

The previous prime is 12917340973. The next prime is 12917341027. The reversal of 12917340994 is 49904371921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12625443769 + 291897225 = 112363^2 + 17085^2 .

It is a super-3 number, since 3×12917340994³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3229335247 + ... + 3229335250.

Almost surely, 2^12917340994 is an apocalyptic number.

12917340994 is a deficient number, since it is larger than the sum of its proper divisors (6458670500).

12917340994 is an equidigital number, since it uses as much as digits as its factorization.

12917340994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6458670499.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 12917340994 in words is "twelve billion, nine hundred seventeen million, three hundred forty thousand, nine hundred ninety-four".