12392640276 has 24 divisors (see below), whose sum is σ = 29186408160. Its totient is φ = 4092273312.

The previous prime is 12392640173. The next prime is 12392640287. The reversal of 12392640276 is 67204629321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4824511 + ... + 4827078.

It is an arithmetic number, because the mean of its divisors is an integer number (1216100340).

Almost surely, 2^12392640276 is an apocalyptic number.

It is an amenable number.

12392640276 is an abundant number, since it is smaller than the sum of its proper divisors (16793767884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12392640276 is a wasteful number, since it uses less digits than its factorization.

12392640276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9651703 (or 9651701 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 12392640276 in words is "twelve billion, three hundred ninety-two million, six hundred forty thousand, two hundred seventy-six".