117957268691 has 2 divisors, whose sum is σ = 117957268692. Its totient is φ = 117957268690.

The previous prime is 117957268669. The next prime is 117957268729. The reversal of 117957268691 is 196862759711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117957268691 - 2¹⁴ = 117957252307 is a prime.

It is not a weakly prime, because it can be changed into another prime (117957268391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58978634345 + 58978634346.

It is an arithmetic number, because the mean of its divisors is an integer number (58978634346).

Almost surely, 2^117957268691 is an apocalyptic number.

117957268691 is a deficient number, since it is larger than the sum of its proper divisors (1).

117957268691 is an equidigital number, since it uses as much as digits as its factorization.

117957268691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 62.

The spelling of 117957268691 in words is "one hundred seventeen billion, nine hundred fifty-seven million, two hundred sixty-eight thousand, six hundred ninety-one".