117988663954 has 16 divisors (see below), whose sum is σ = 208791000576. Its totient is φ = 48935390400.

The previous prime is 117988663873. The next prime is 117988663957. The reversal of 117988663954 is 459366889711.

It is a self number, because there is not a number n which added to its sum of digits gives 117988663954.

It is not an unprimeable number, because it can be changed into a prime (117988663957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135931207 + ... + 135932074.

It is an arithmetic number, because the mean of its divisors is an integer number (13049437536).

Almost surely, 2^117988663954 is an apocalyptic number.

117988663954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

117988663954 is a deficient number, since it is larger than the sum of its proper divisors (90802336622).

117988663954 is a wasteful number, since it uses less digits than its factorization.

117988663954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271863321.

The product of its digits is 78382080, while the sum is 67.

The spelling of 117988663954 in words is "one hundred seventeen billion, nine hundred eighty-eight million, six hundred sixty-three thousand, nine hundred fifty-four".