117389857620 has 144 divisors (see below), whose sum is σ = 383040076608. Its totient is φ = 26783930880.

The previous prime is 117389857603. The next prime is 117389857649. The reversal of 117389857620 is 26758983711.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1619760 + ... + 1690680.

It is an arithmetic number, because the mean of its divisors is an integer number (2660000532).

Almost surely, 2^117389857620 is an apocalyptic number.

117389857620 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 117389857620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191520038304).

117389857620 is an abundant number, since it is smaller than the sum of its proper divisors (265650218988).

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

117389857620 is a wasteful number, since it uses less digits than its factorization.

117389857620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71510 (or 71501 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 57.

The spelling of 117389857620 in words is "one hundred seventeen billion, three hundred eighty-nine million, eight hundred fifty-seven thousand, six hundred twenty".