117280912820 has 12 divisors (see below), whose sum is σ = 246289916964. Its totient is φ = 46912365120.

The previous prime is 117280912813. The next prime is 117280912823. The reversal of 117280912820 is 28219082711.

117280912820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43125998224 + 74154914596 = 207668^2 + 272314^2 .

It is a super-3 number, since 3×117280912820³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117280912823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2932022801 + ... + 2932022840.

It is an arithmetic number, because the mean of its divisors is an integer number (20524159747).

Almost surely, 2^117280912820 is an apocalyptic number.

117280912820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117280912820 is an abundant number, since it is smaller than the sum of its proper divisors (129009004144).

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

117280912820 is a wasteful number, since it uses less digits than its factorization.

117280912820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864045650 (or 5864045648 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 41.

The spelling of 117280912820 in words is "one hundred seventeen billion, two hundred eighty million, nine hundred twelve thousand, eight hundred twenty".