117885707961 has 16 divisors (see below), whose sum is σ = 180566123904. Its totient is φ = 67014226944.

The previous prime is 117885707959. The next prime is 117885707971. The reversal of 117885707961 is 169707588711.

It is not a de Polignac number, because 117885707961 - 2¹ = 117885707959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117885707895 and 117885707904.

It is not an unprimeable number, because it can be changed into a prime (117885707941) 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 in 15 ways as a sum of consecutive naturals, for example, 14538966 + ... + 14547071.

It is an arithmetic number, because the mean of its divisors is an integer number (11285382744).

Almost surely, 2^117885707961 is an apocalyptic number.

It is an amenable number.

117885707961 is a deficient number, since it is larger than the sum of its proper divisors (62680415943).

117885707961 is a wasteful number, since it uses less digits than its factorization.

117885707961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29086240.

The product of its (nonzero) digits is 5927040, while the sum is 60.

The spelling of 117885707961 in words is "one hundred seventeen billion, eight hundred eighty-five million, seven hundred seven thousand, nine hundred sixty-one".