117717771837 has 16 divisors (see below), whose sum is σ = 161214564672. Its totient is φ = 76350153600.

The previous prime is 117717771827. The next prime is 117717771851. The reversal of 117717771837 is 738177717711.

It is not a de Polignac number, because 117717771837 - 2³⁴ = 100537902653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117717771827) 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, 1264978 + ... + 1354844.

It is an arithmetic number, because the mean of its divisors is an integer number (10075910292).

Almost surely, 2^117717771837 is an apocalyptic number.

It is an amenable number.

117717771837 is a deficient number, since it is larger than the sum of its proper divisors (43496792835).

117717771837 is a wasteful number, since it uses less digits than its factorization.

117717771837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101708.

The product of its digits is 2823576, while the sum is 57.

The spelling of 117717771837 in words is "one hundred seventeen billion, seven hundred seventeen million, seven hundred seventy-one thousand, eight hundred thirty-seven".