12556959292 has 6 divisors (see below), whose sum is σ = 21974678768. Its totient is φ = 6278479644.

The previous prime is 12556959263. The next prime is 12556959329. The reversal of 12556959292 is 29295965521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569619908 + ... + 1569619915.

Almost surely, 2^12556959292 is an apocalyptic number.

It is an amenable number.

12556959292 is a deficient number, since it is larger than the sum of its proper divisors (9417719476).

12556959292 is a wasteful number, since it uses less digits than its factorization.

12556959292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139239827 (or 3139239825 counting only the distinct ones).

The product of its digits is 4374000, while the sum is 55.

The spelling of 12556959292 in words is "twelve billion, five hundred fifty-six million, nine hundred fifty-nine thousand, two hundred ninety-two".