12902791515 has 16 divisors (see below), whose sum is σ = 21202425888. Its totient is φ = 6695502336.

The previous prime is 12902791507. The next prime is 12902791579. The reversal of 12902791515 is 51519720921.

It is not a de Polignac number, because 12902791515 - 2³ = 12902791507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11623582 + ... + 11624691.

It is an arithmetic number, because the mean of its divisors is an integer number (1325151618).

Almost surely, 2^12902791515 is an apocalyptic number.

12902791515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12902791515 is a deficient number, since it is larger than the sum of its proper divisors (8299634373).

12902791515 is a wasteful number, since it uses less digits than its factorization.

12902791515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23248318.

The product of its (nonzero) digits is 56700, while the sum is 42.

The spelling of 12902791515 in words is "twelve billion, nine hundred two million, seven hundred ninety-one thousand, five hundred fifteen".