12788992515 has 64 divisors (see below), whose sum is σ = 22778542080. Its totient is φ = 6087605760.

The previous prime is 12788992483. The next prime is 12788992537. The reversal of 12788992515 is 51529988721.

It is not a de Polignac number, because 12788992515 - 2⁵ = 12788992483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 692694 + ... + 710916.

It is an arithmetic number, because the mean of its divisors is an integer number (355914720).

Almost surely, 2^12788992515 is an apocalyptic number.

12788992515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12788992515 is a deficient number, since it is larger than the sum of its proper divisors (9989549565).

12788992515 is a wasteful number, since it uses less digits than its factorization.

12788992515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18364.

The product of its digits is 3628800, while the sum is 57.

The spelling of 12788992515 in words is "twelve billion, seven hundred eighty-eight million, nine hundred ninety-two thousand, five hundred fifteen".