12939070815 has 192 divisors, whose sum is σ = 26323315200. Its totient is φ = 6043507200.

The previous prime is 12939070801. The next prime is 12939070817. The reversal of 12939070815 is 51807093921.

It is not a de Polignac number, because 12939070815 - 2⁶ = 12939070751 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939070817) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 48100501 + ... + 48100769.

It is an arithmetic number, because the mean of its divisors is an integer number (137100600).

Almost surely, 2^12939070815 is an apocalyptic number.

12939070815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12939070815 is an abundant number, since it is smaller than the sum of its proper divisors (13384244385).

12939070815 is a wasteful number, since it uses less digits than its factorization.

12939070815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 12939070815 in words is "twelve billion, nine hundred thirty-nine million, seventy thousand, eight hundred fifteen".