117981423842 has 8 divisors (see below), whose sum is σ = 182680914432. Its totient is φ = 57087785700.

The previous prime is 117981423841. The next prime is 117981423871. The reversal of 117981423842 is 248324189711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (117981423841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951463034 + ... + 951463157.

It is an arithmetic number, because the mean of its divisors is an integer number (22835114304).

Almost surely, 2^117981423842 is an apocalyptic number.

117981423842 is a deficient number, since it is larger than the sum of its proper divisors (64699490590).

117981423842 is a wasteful number, since it uses less digits than its factorization.

117981423842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902926224.

The product of its digits is 774144, while the sum is 50.

The spelling of 117981423842 in words is "one hundred seventeen billion, nine hundred eighty-one million, four hundred twenty-three thousand, eight hundred forty-two".