117042271920 has 480 divisors, whose sum is σ = 470712872448. Its totient is φ = 26473734144.

The previous prime is 117042271901. The next prime is 117042271937. The reversal of 117042271920 is 29172240711.

117042271920 is a `hidden beast` number, since 11 + 70 + 422 + 71 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13195327 + ... + 13204193.

Almost surely, 2^117042271920 is an apocalyptic number.

117042271920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117042271920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235356436224).

117042271920 is an abundant number, since it is smaller than the sum of its proper divisors (353670600528).

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

117042271920 is an equidigital number, since it uses as much as digits as its factorization.

117042271920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8999 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 117042271920 in words is "one hundred seventeen billion, forty-two million, two hundred seventy-one thousand, nine hundred twenty".