117956946390 has 64 divisors (see below), whose sum is σ = 293095800000. Its totient is φ = 30345928704.

The previous prime is 117956946389. The next prime is 117956946391. The reversal of 117956946390 is 93649659711.

It is an interprime number because it is at equal distance from previous prime (117956946389) and next prime (117956946391).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117956946391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1032354 + ... + 1140906.

It is an arithmetic number, because the mean of its divisors is an integer number (4579621875).

Almost surely, 2^117956946390 is an apocalyptic number.

117956946390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117956946390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146547900000).

117956946390 is an abundant number, since it is smaller than the sum of its proper divisors (175138853610).

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

117956946390 is a wasteful number, since it uses less digits than its factorization.

117956946390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109841.

The product of its (nonzero) digits is 11022480, while the sum is 60.

The spelling of 117956946390 in words is "one hundred seventeen billion, nine hundred fifty-six million, nine hundred forty-six thousand, three hundred ninety".