12916839500625 has 20 divisors (see below), whose sum is σ = 21521176856432. Its totient is φ = 6888981066000.

The previous prime is 12916839500623. The next prime is 12916839500639. The reversal of 12916839500625 is 52600593861921.

It is a happy number.

It is not a de Polignac number, because 12916839500625 - 2¹ = 12916839500623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12916839500623) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3444488659 + ... + 3444492408.

Almost surely, 2^{12916839500625} is an apocalyptic number.

12916839500625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12916839500625 is a deficient number, since it is larger than the sum of its proper divisors (8604337355807).

12916839500625 is an frugal number, since it uses more digits than its factorization.

12916839500625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6888981090 (or 6888981075 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 57.

The spelling of 12916839500625 in words is "twelve trillion, nine hundred sixteen billion, eight hundred thirty-nine million, five hundred thousand, six hundred twenty-five".