117115774770 has 64 divisors (see below), whose sum is σ = 288730780416. Its totient is φ = 30380878080.

The previous prime is 117115774697. The next prime is 117115774777. The reversal of 117115774770 is 77477511711.

It is a super-2 number, since 2×117115774770² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (117115774777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11162467 + ... + 11172953.

It is an arithmetic number, because the mean of its divisors is an integer number (4511418444).

Almost surely, 2^117115774770 is an apocalyptic number.

117115774770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117115774770 is an abundant number, since it is smaller than the sum of its proper divisors (171615005646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117115774770 is a wasteful number, since it uses less digits than its factorization.

117115774770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20595.

The product of its (nonzero) digits is 336140, while the sum is 48.

The spelling of 117115774770 in words is "one hundred seventeen billion, one hundred fifteen million, seven hundred seventy-four thousand, seven hundred seventy".