12511350515 has 32 divisors (see below), whose sum is σ = 16118585280. Its totient is φ = 9289580544.

The previous prime is 12511350497. The next prime is 12511350547. The reversal of 12511350515 is 51505311521.

It is a cyclic number.

It is not a de Polignac number, because 12511350515 - 2¹⁸ = 12511088371 is a prime.

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, 2413196 + ... + 2418374.

It is an arithmetic number, because the mean of its divisors is an integer number (503705790).

Almost surely, 2^12511350515 is an apocalyptic number.

12511350515 is a deficient number, since it is larger than the sum of its proper divisors (3607234765).

12511350515 is a wasteful number, since it uses less digits than its factorization.

12511350515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5591.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 12511350515 in words is "twelve billion, five hundred eleven million, three hundred fifty thousand, five hundred fifteen".