117955857761 has 8 divisors (see below), whose sum is σ = 134813858304. Its totient is φ = 101099648160.

The previous prime is 117955857757. The next prime is 117955857763. The reversal of 117955857761 is 167758559711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117955857761 - 2² = 117955857757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117955857694 and 117955857703.

It is not an unprimeable number, because it can be changed into a prime (117955857763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303500 + ... + 572733.

It is an arithmetic number, because the mean of its divisors is an integer number (16851732288).

Almost surely, 2^117955857761 is an apocalyptic number.

It is an amenable number.

117955857761 is a deficient number, since it is larger than the sum of its proper divisors (16858000543).

117955857761 is an equidigital number, since it uses as much as digits as its factorization.

117955857761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895471.

The product of its digits is 18522000, while the sum is 62.

The spelling of 117955857761 in words is "one hundred seventeen billion, nine hundred fifty-five million, eight hundred fifty-seven thousand, seven hundred sixty-one".