13047263761 has 6 divisors (see below), whose sum is σ = 15177429330. Its totient is φ = 11183368896.

The previous prime is 13047263759. The next prime is 13047263771. The reversal of 13047263761 is 16736274031.

It can be written as a sum of positive squares in only one way, i.e., 8357616400 + 4689647361 = 91420^2 + 68481^2 .

It is not a de Polignac number, because 13047263761 - 2¹ = 13047263759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13047263771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133135296 + ... + 133135393.

It is an arithmetic number, because the mean of its divisors is an integer number (2529571555).

Almost surely, 2^13047263761 is an apocalyptic number.

It is an amenable number.

13047263761 is a deficient number, since it is larger than the sum of its proper divisors (2130165569).

13047263761 is an equidigital number, since it uses as much as digits as its factorization.

13047263761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266270703 (or 266270696 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 13047263761 in words is "thirteen billion, forty-seven million, two hundred sixty-three thousand, seven hundred sixty-one".