117850561171 has 16 divisors (see below), whose sum is σ = 138242623680. Its totient is φ = 98357253120.

The previous prime is 117850561141. The next prime is 117850561237. The reversal of 117850561171 is 171165058711.

It is not a de Polignac number, because 117850561171 - 2¹⁵ = 117850528403 is a prime.

It is a super-2 number, since 2×117850561171² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117850561111) 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, 257286 + ... + 549451.

It is an arithmetic number, because the mean of its divisors is an integer number (8640163980).

Almost surely, 2^117850561171 is an apocalyptic number.

117850561171 is a deficient number, since it is larger than the sum of its proper divisors (20392062509).

117850561171 is an equidigital number, since it uses as much as digits as its factorization.

117850561171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807294.

The product of its (nonzero) digits is 58800, while the sum is 43.

The spelling of 117850561171 in words is "one hundred seventeen billion, eight hundred fifty million, five hundred sixty-one thousand, one hundred seventy-one".