12630976515 has 32 divisors (see below), whose sum is σ = 22472309760. Its totient is φ = 6731348832.

The previous prime is 12630976471. The next prime is 12630976537. The reversal of 12630976515 is 51567903621.

12630976515 is a `hidden beast` number, since 1 + 2 + 63 + 0 + 9 + 76 + 515 = 666.

It is not a de Polignac number, because 12630976515 - 2⁹ = 12630976003 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143892 + ... + 214398.

It is an arithmetic number, because the mean of its divisors is an integer number (702259680).

Almost surely, 2^12630976515 is an apocalyptic number.

12630976515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12630976515 is a deficient number, since it is larger than the sum of its proper divisors (9841333245).

12630976515 is a wasteful number, since it uses less digits than its factorization.

12630976515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71848 (or 71842 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 12630976515 in words is "twelve billion, six hundred thirty million, nine hundred seventy-six thousand, five hundred fifteen".