117777789682 has 16 divisors (see below), whose sum is σ = 201918640320. Its totient is φ = 50472731088.

The previous prime is 117777789659. The next prime is 117777789683. The reversal of 117777789682 is 286987777711.

It is a happy number.

It is a super-2 number, since 2×117777789682² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 71832 + ... + 490627.

It is an arithmetic number, because the mean of its divisors is an integer number (12619915020).

Almost surely, 2^117777789682 is an apocalyptic number.

117777789682 is a deficient number, since it is larger than the sum of its proper divisors (84140850638).

117777789682 is a wasteful number, since it uses less digits than its factorization.

117777789682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577425.

The product of its digits is 116169984, while the sum is 70.

The spelling of 117777789682 in words is "one hundred seventeen billion, seven hundred seventy-seven million, seven hundred eighty-nine thousand, six hundred eighty-two".