117387035891 has 2 divisors, whose sum is σ = 117387035892. Its totient is φ = 117387035890.

The previous prime is 117387035873. The next prime is 117387035911. The reversal of 117387035891 is 198530783711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117387035891 - 2¹⁸ = 117386773747 is a prime.

It is not a weakly prime, because it can be changed into another prime (117387035791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58693517945 + 58693517946.

It is an arithmetic number, because the mean of its divisors is an integer number (58693517946).

Almost surely, 2^117387035891 is an apocalyptic number.

117387035891 is a deficient number, since it is larger than the sum of its proper divisors (1).

117387035891 is an equidigital number, since it uses as much as digits as its factorization.

117387035891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 117387035891 in words is "one hundred seventeen billion, three hundred eighty-seven million, thirty-five thousand, eight hundred ninety-one".