12747364731 has 6 divisors (see below), whose sum is σ = 18412860180. Its totient is φ = 8498243148.

The previous prime is 12747364699. The next prime is 12747364741. The reversal of 12747364731 is 13746374721.

It is a happy number.

It is not a de Polignac number, because 12747364731 - 2⁵ = 12747364699 is a prime.

It is a super-2 number, since 2×12747364731² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12747364741) 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 5 ways as a sum of consecutive naturals, for example, 708186921 + ... + 708186938.

It is an arithmetic number, because the mean of its divisors is an integer number (3068810030).

Almost surely, 2^12747364731 is an apocalyptic number.

12747364731 is a deficient number, since it is larger than the sum of its proper divisors (5665495449).

12747364731 is a wasteful number, since it uses less digits than its factorization.

12747364731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416373865 (or 1416373862 counting only the distinct ones).

The product of its digits is 592704, while the sum is 45.

The spelling of 12747364731 in words is "twelve billion, seven hundred forty-seven million, three hundred sixty-four thousand, seven hundred thirty-one".