12239675640 has 128 divisors (see below), whose sum is σ = 43198920000. Its totient is φ = 3071913984.

The previous prime is 12239675633. The next prime is 12239675677. The reversal of 12239675640 is 4657693221.

12239675640 is a `hidden beast` number, since 1 + 2 + 23 + 9 + 67 + 564 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314965 + ... + 351684.

Almost surely, 2^12239675640 is an apocalyptic number.

12239675640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12239675640 is an abundant number, since it is smaller than the sum of its proper divisors (30959244360).

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

12239675640 is a wasteful number, since it uses less digits than its factorization.

12239675640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666686 (or 666676 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 12239675640 in words is "twelve billion, two hundred thirty-nine million, six hundred seventy-five thousand, six hundred forty".