42992415831 has 8 divisors (see below), whose sum is σ = 57337127424. Its totient is φ = 28654657400.

The previous prime is 42992415827. The next prime is 42992415877. The reversal of 42992415831 is 13851429924.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42992415831 - 2² = 42992415827 is a prime.

It is a super-2 number, since 2×42992415831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42992415881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1723845 + ... + 1748606.

It is an arithmetic number, because the mean of its divisors is an integer number (7167140928).

Almost surely, 2^42992415831 is an apocalyptic number.

42992415831 is a deficient number, since it is larger than the sum of its proper divisors (14344711593).

42992415831 is a wasteful number, since it uses less digits than its factorization.

42992415831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476581.

The product of its digits is 622080, while the sum is 48.

The spelling of 42992415831 in words is "forty-two billion, nine hundred ninety-two million, four hundred fifteen thousand, eight hundred thirty-one".