117287031840 has 192 divisors, whose sum is σ = 416042790912. Its totient is φ = 27515980800.

The previous prime is 117287031821. The next prime is 117287031859. The reversal of 117287031840 is 48130782711.

It is an interprime number because it is at equal distance from previous prime (117287031821) and next prime (117287031859).

It is a junction number, because it is equal to n+sod(n) for n = 117287031792 and 117287031801.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194602 + ... + 521961.

It is an arithmetic number, because the mean of its divisors is an integer number (2166889536).

Almost surely, 2^117287031840 is an apocalyptic number.

117287031840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117287031840 is an abundant number, since it is smaller than the sum of its proper divisors (298755759072).

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

117287031840 is a wasteful number, since it uses less digits than its factorization.

117287031840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716623 (or 716615 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 117287031840 in words is "one hundred seventeen billion, two hundred eighty-seven million, thirty-one thousand, eight hundred forty".