842172353924 has 24 divisors (see below), whose sum is σ = 1629808023648. Its totient is φ = 377561701440.

The previous prime is 842172353863. The next prime is 842172353933. The reversal of 842172353924 is 429353271248.

It is a super-2 number, since 2×842172353924² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131094602 + ... + 131101025.

It is an arithmetic number, because the mean of its divisors is an integer number (67908667652).

Almost surely, 2^842172353924 is an apocalyptic number.

It is an amenable number.

842172353924 is a deficient number, since it is larger than the sum of its proper divisors (787635669724).

842172353924 is a wasteful number, since it uses less digits than its factorization.

842172353924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262195715 (or 262195713 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 842172353924 in words is "eight hundred forty-two billion, one hundred seventy-two million, three hundred fifty-three thousand, nine hundred twenty-four".