12810942815 has 16 divisors (see below), whose sum is σ = 16773035040. Its totient is φ = 9315745920.

The previous prime is 12810942811. The next prime is 12810942857. The reversal of 12810942815 is 51824901821.

It is not a de Polignac number, because 12810942815 - 2² = 12810942811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12810942811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571397 + ... + 593393.

It is an arithmetic number, because the mean of its divisors is an integer number (1048314690).

Almost surely, 2^12810942815 is an apocalyptic number.

12810942815 is a deficient number, since it is larger than the sum of its proper divisors (3962092225).

12810942815 is a wasteful number, since it uses less digits than its factorization.

12810942815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32602.

The product of its (nonzero) digits is 46080, while the sum is 41.

The spelling of 12810942815 in words is "twelve billion, eight hundred ten million, nine hundred forty-two thousand, eight hundred fifteen".