117136761569 has 2 divisors, whose sum is σ = 117136761570. Its totient is φ = 117136761568.

The previous prime is 117136761551. The next prime is 117136761583. The reversal of 117136761569 is 965167631711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71469071569 + 45667690000 = 267337^2 + 213700^2 .

It is a cyclic number.

It is not a de Polignac number, because 117136761569 - 2²⁴ = 117119984353 is a prime.

It is a super-2 number, since 2×117136761569² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 117136761569.

It is not a weakly prime, because it can be changed into another prime (117136761589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58568380784 + 58568380785.

It is an arithmetic number, because the mean of its divisors is an integer number (58568380785).

Almost surely, 2^117136761569 is an apocalyptic number.

It is an amenable number.

117136761569 is a deficient number, since it is larger than the sum of its proper divisors (1).

117136761569 is an equidigital number, since it uses as much as digits as its factorization.

117136761569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 53.

The spelling of 117136761569 in words is "one hundred seventeen billion, one hundred thirty-six million, seven hundred sixty-one thousand, five hundred sixty-nine".