12993865620 has 24 divisors (see below), whose sum is σ = 36382823904. Its totient is φ = 3465030816.

The previous prime is 12993865613. The next prime is 12993865627. The reversal of 12993865620 is 2656839921.

It is an interprime number because it is at equal distance from previous prime (12993865613) and next prime (12993865627).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12993865627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108282154 + ... + 108282273.

It is an arithmetic number, because the mean of its divisors is an integer number (1515950996).

Almost surely, 2^12993865620 is an apocalyptic number.

12993865620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12993865620 is an abundant number, since it is smaller than the sum of its proper divisors (23388958284).

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

12993865620 is a wasteful number, since it uses less digits than its factorization.

12993865620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216564439 (or 216564437 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 12993865620 in words is "twelve billion, nine hundred ninety-three million, eight hundred sixty-five thousand, six hundred twenty".