117138942751 has 2 divisors, whose sum is σ = 117138942752. Its totient is φ = 117138942750.

The previous prime is 117138942719. The next prime is 117138942761. The reversal of 117138942751 is 157249831711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117138942751 - 2⁵ = 117138942719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117138942695 and 117138942704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117138942761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58569471375 + 58569471376.

It is an arithmetic number, because the mean of its divisors is an integer number (58569471376).

Almost surely, 2^117138942751 is an apocalyptic number.

117138942751 is a deficient number, since it is larger than the sum of its proper divisors (1).

117138942751 is an equidigital number, since it uses as much as digits as its factorization.

117138942751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 49.

The spelling of 117138942751 in words is "one hundred seventeen billion, one hundred thirty-eight million, nine hundred forty-two thousand, seven hundred fifty-one".