117982042409 has 32 divisors (see below), whose sum is σ = 147532492800. Its totient is φ = 91660780800.

The previous prime is 117982042369. The next prime is 117982042421. The reversal of 117982042409 is 904240289711.

It is a cyclic number.

It is not a de Polignac number, because 117982042409 - 2¹⁶ = 117981976873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117982042489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56207642 + ... + 56209740.

It is an arithmetic number, because the mean of its divisors is an integer number (4610390400).

Almost surely, 2^117982042409 is an apocalyptic number.

It is an amenable number.

117982042409 is a deficient number, since it is larger than the sum of its proper divisors (29550450391).

117982042409 is a wasteful number, since it uses less digits than its factorization.

117982042409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 117982042409 in words is "one hundred seventeen billion, nine hundred eighty-two million, forty-two thousand, four hundred nine".