11947297741515 has 64 divisors (see below), whose sum is σ = 21335068984320. Its totient is φ = 6343315787520.

The previous prime is 11947297741471. The next prime is 11947297741517. The reversal of 11947297741515 is 51514779274911.

11947297741515 is a `hidden beast` number, since 1 + 1 + 9 + 4 + 7 + 2 + 9 + 77 + 41 + 515 = 666.

It is not a de Polignac number, because 11947297741515 - 2⁷ = 11947297741387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11947297741517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32861407 + ... + 33222983.

It is an arithmetic number, because the mean of its divisors is an integer number (333360452880).

Almost surely, 2^{11947297741515} is an apocalyptic number.

11947297741515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11947297741515 is a deficient number, since it is larger than the sum of its proper divisors (9387771242805).

11947297741515 is a wasteful number, since it uses less digits than its factorization.

11947297741515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362689 (or 362683 counting only the distinct ones).

The product of its digits is 22226400, while the sum is 63.

The spelling of 11947297741515 in words is "eleven trillion, nine hundred forty-seven billion, two hundred ninety-seven million, seven hundred forty-one thousand, five hundred fifteen".