117786914640 has 200 divisors, whose sum is σ = 411172466760. Its totient is φ = 31250064384.

The previous prime is 117786914627. The next prime is 117786914671. The reversal of 117786914640 is 46419687711.

117786914640 is a `hidden beast` number, since 1 + 17 + 7 + 86 + 91 + 464 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14622613776 + 103164300864 = 120924^2 + 321192^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1230426 + ... + 1322694.

Almost surely, 2^117786914640 is an apocalyptic number.

117786914640 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 117786914640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205586233380).

117786914640 is an abundant number, since it is smaller than the sum of its proper divisors (293385552120).

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

117786914640 is a wasteful number, since it uses less digits than its factorization.

117786914640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92491 (or 92476 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 117786914640 in words is "one hundred seventeen billion, seven hundred eighty-six million, nine hundred fourteen thousand, six hundred forty".