12491317996 has 12 divisors (see below), whose sum is σ = 22072038352. Its totient is φ = 6185021328.

The previous prime is 12491317973. The next prime is 12491318041. The reversal of 12491317996 is 69971319421.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15158955 + ... + 15159778.

Almost surely, 2^12491317996 is an apocalyptic number.

It is an amenable number.

12491317996 is a deficient number, since it is larger than the sum of its proper divisors (9580720356).

12491317996 is a wasteful number, since it uses less digits than its factorization.

12491317996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30318840 (or 30318838 counting only the distinct ones).

The product of its digits is 734832, while the sum is 52.

The spelling of 12491317996 in words is "twelve billion, four hundred ninety-one million, three hundred seventeen thousand, nine hundred ninety-six".