117839841690 has 16 divisors (see below), whose sum is σ = 282815620128. Its totient is φ = 31423957776.

The previous prime is 117839841683. The next prime is 117839841731. The reversal of 117839841690 is 96148938711.

It is a super-2 number, since 2×117839841690² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117839841690.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1963997332 + ... + 1963997391.

It is an arithmetic number, because the mean of its divisors is an integer number (17675976258).

Almost surely, 2^117839841690 is an apocalyptic number.

117839841690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117839841690 is an abundant number, since it is smaller than the sum of its proper divisors (164975778438).

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

117839841690 is a wasteful number, since it uses less digits than its factorization.

117839841690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927994733.

The product of its (nonzero) digits is 2612736, while the sum is 57.

The spelling of 117839841690 in words is "one hundred seventeen billion, eight hundred thirty-nine million, eight hundred forty-one thousand, six hundred ninety".