12845631992 has 16 divisors (see below), whose sum is σ = 24096025800. Its totient is φ = 6420025120.

The previous prime is 12845631989. The next prime is 12845632001. The reversal of 12845631992 is 29913654821.

It is a super-2 number, since 2×12845631992² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12845631992.

It is a congruent number.

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, 329234 + ... + 366177.

Almost surely, 2^12845631992 is an apocalyptic number.

It is an amenable number.

12845631992 is a deficient number, since it is larger than the sum of its proper divisors (11250393808).

12845631992 is a wasteful number, since it uses less digits than its factorization.

12845631992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697726 (or 697722 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The spelling of 12845631992 in words is "twelve billion, eight hundred forty-five million, six hundred thirty-one thousand, nine hundred ninety-two".