42242115831 has 16 divisors (see below), whose sum is σ = 59640947424. Its totient is φ = 26502626304.

The previous prime is 42242115821. The next prime is 42242115863. The reversal of 42242115831 is 13851124224.

It is not a de Polignac number, because 42242115831 - 2¹⁰ = 42242114807 is a prime.

It is a super-2 number, since 2×42242115831² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42242115792 and 42242115801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242115821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747585 + ... + 802101.

It is an arithmetic number, because the mean of its divisors is an integer number (3727559214).

Almost surely, 2^42242115831 is an apocalyptic number.

42242115831 is a deficient number, since it is larger than the sum of its proper divisors (17398831593).

42242115831 is a wasteful number, since it uses less digits than its factorization.

42242115831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69730.

The product of its digits is 15360, while the sum is 33.

The spelling of 42242115831 in words is "forty-two billion, two hundred forty-two million, one hundred fifteen thousand, eight hundred thirty-one".