2117942384142 has 32 divisors (see below), whose sum is σ = 4830058652832. Its totient is φ = 613340780544.

The previous prime is 2117942384137. The next prime is 2117942384179. The reversal of 2117942384142 is 2414832497112.

It is a junction number, because it is equal to n+sod(n) for n = 2117942384091 and 2117942384100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798619483 + ... + 798622134.

It is an arithmetic number, because the mean of its divisors is an integer number (150939332901).

Almost surely, 2^{2117942384142} is an apocalyptic number.

2117942384142 is an abundant number, since it is smaller than the sum of its proper divisors (2712116268690).

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

2117942384142 is a wasteful number, since it uses less digits than its factorization.

2117942384142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597241652.

The product of its digits is 774144, while the sum is 48.

The spelling of 2117942384142 in words is "two trillion, one hundred seventeen billion, nine hundred forty-two million, three hundred eighty-four thousand, one hundred forty-two".