11512647315 has 64 divisors (see below), whose sum is σ = 22081449600. Its totient is φ = 5657444352.

The previous prime is 11512647313. The next prime is 11512647323. The reversal of 11512647315 is 51374621511.

11512647315 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 2 + 647 + 3 + 1 + 5 = 666.

11512647315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11512647315 - 2¹ = 11512647313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11512647315.

It is not an unprimeable number, because it can be changed into a prime (11512647313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1006951 + ... + 1018319.

It is an arithmetic number, because the mean of its divisors is an integer number (345022650).

Almost surely, 2^11512647315 is an apocalyptic number.

11512647315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11512647315 is a deficient number, since it is larger than the sum of its proper divisors (10568802285).

11512647315 is a wasteful number, since it uses less digits than its factorization.

11512647315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11973 (or 11967 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The spelling of 11512647315 in words is "eleven billion, five hundred twelve million, six hundred forty-seven thousand, three hundred fifteen".