117761391830 has 16 divisors (see below), whose sum is σ = 211995282240. Its totient is φ = 47099050752.

The previous prime is 117761391757. The next prime is 117761391841. The reversal of 117761391830 is 38193167711.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 597854 + ... + 770033.

It is an arithmetic number, because the mean of its divisors is an integer number (13249705140).

Almost surely, 2^117761391830 is an apocalyptic number.

117761391830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117761391830 is a deficient number, since it is larger than the sum of its proper divisors (94233890410).

117761391830 is a wasteful number, since it uses less digits than its factorization.

117761391830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376503.

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 117761391830 in words is "one hundred seventeen billion, seven hundred sixty-one million, three hundred ninety-one thousand, eight hundred thirty".