117876810251 has 2 divisors, whose sum is σ = 117876810252. Its totient is φ = 117876810250.

The previous prime is 117876810241. The next prime is 117876810263. The reversal of 117876810251 is 152018678711.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117876810251 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 117876810196 and 117876810205.

It is not a weakly prime, because it can be changed into another prime (117876810211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58938405125 + 58938405126.

It is an arithmetic number, because the mean of its divisors is an integer number (58938405126).

Almost surely, 2^117876810251 is an apocalyptic number.

117876810251 is a deficient number, since it is larger than the sum of its proper divisors (1).

117876810251 is an equidigital number, since it uses as much as digits as its factorization.

117876810251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 47.

The spelling of 117876810251 in words is "one hundred seventeen billion, eight hundred seventy-six million, eight hundred ten thousand, two hundred fifty-one".