117777789684 has 72 divisors (see below), whose sum is σ = 314387149440. Its totient is φ = 37074091392.

The previous prime is 117777789683. The next prime is 117777789713. The reversal of 117777789684 is 486987777711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117777789683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60972 + ... + 489155.

Almost surely, 2^117777789684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117777789684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157193574720).

117777789684 is an abundant number, since it is smaller than the sum of its proper divisors (196609359756).

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

117777789684 is a wasteful number, since it uses less digits than its factorization.

117777789684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550469 (or 550464 counting only the distinct ones).

The product of its digits is 232339968, while the sum is 72.

The spelling of 117777789684 in words is "one hundred seventeen billion, seven hundred seventy-seven million, seven hundred eighty-nine thousand, six hundred eighty-four".