117688630477 has 4 divisors (see below), whose sum is σ = 128387596896. Its totient is φ = 106989664060.

The previous prime is 117688630457. The next prime is 117688630513. The reversal of 117688630477 is 774036886711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117688630477 is a prime.

It is a super-2 number, since 2×117688630477² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117688630457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5349483193 + ... + 5349483214.

It is an arithmetic number, because the mean of its divisors is an integer number (32096899224).

Almost surely, 2^117688630477 is an apocalyptic number.

It is an amenable number.

117688630477 is a deficient number, since it is larger than the sum of its proper divisors (10698966419).

117688630477 is a wasteful number, since it uses less digits than its factorization.

117688630477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698966418.

The product of its (nonzero) digits is 9483264, while the sum is 58.

The spelling of 117688630477 in words is "one hundred seventeen billion, six hundred eighty-eight million, six hundred thirty thousand, four hundred seventy-seven".