12647435094918 has 64 divisors (see below), whose sum is σ = 30297012580800. Its totient is φ = 3887706792960.

The previous prime is 12647435094911. The next prime is 12647435094989. The reversal of 12647435094918 is 81949053474621.

12647435094918 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 74 + 3 + 509 + 49 + 18 = 666.

It is a super-2 number, since 2×12647435094918² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647435094911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8106123 + ... + 9539606.

It is an arithmetic number, because the mean of its divisors is an integer number (473390821575).

It is a 2-persistent number, because it is pandigital, and so is 2⋅12647435094918 = 25294870189836, but 3⋅12647435094918 = 37942305284754 is not.

Almost surely, 2^{12647435094918} is an apocalyptic number.

12647435094918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12647435094918 is an abundant number, since it is smaller than the sum of its proper divisors (17649577485882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12647435094918 is a wasteful number, since it uses less digits than its factorization.

12647435094918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17646774 (or 17646768 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 12647435094918 in words is "twelve trillion, six hundred forty-seven billion, four hundred thirty-five million, ninety-four thousand, nine hundred eighteen".