13091915226977 has 16 divisors (see below), whose sum is σ = 13204404010512. Its totient is φ = 12979922042880.

The previous prime is 13091915226911. The next prime is 13091915226989. The reversal of 13091915226977 is 77962251919031.

It can be written as a sum of positive squares in 8 ways, for example, as 1616867376721 + 11475047850256 = 1271561^2 + 3387484^2 .

It is a cyclic number.

It is not a de Polignac number, because 13091915226977 - 2⁸ = 13091915226721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13091915226277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 753396113 + ... + 753413489.

It is an arithmetic number, because the mean of its divisors is an integer number (825275250657).

Almost surely, 2^{13091915226977} is an apocalyptic number.

It is an amenable number.

13091915226977 is a deficient number, since it is larger than the sum of its proper divisors (112488783535).

13091915226977 is a wasteful number, since it uses less digits than its factorization.

13091915226977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31268.

The product of its (nonzero) digits is 12859560, while the sum is 62.

The spelling of 13091915226977 in words is "thirteen trillion, ninety-one billion, nine hundred fifteen million, two hundred twenty-six thousand, nine hundred seventy-seven".