42493286931 has 16 divisors (see below), whose sum is σ = 57748425504. Its totient is φ = 27788673024.

The previous prime is 42493286923. The next prime is 42493286951. The reversal of 42493286931 is 13968239424.

It is not a de Polignac number, because 42493286931 - 2³ = 42493286923 is a prime.

It is a super-2 number, since 2×42493286931² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42493286951) 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, 613246 + ... + 679011.

It is an arithmetic number, because the mean of its divisors is an integer number (3609276594).

Almost surely, 2^42493286931 is an apocalyptic number.

42493286931 is a deficient number, since it is larger than the sum of its proper divisors (15255138573).

42493286931 is a wasteful number, since it uses less digits than its factorization.

42493286931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292470.

The product of its digits is 2239488, while the sum is 51.

The spelling of 42493286931 in words is "forty-two billion, four hundred ninety-three million, two hundred eighty-six thousand, nine hundred thirty-one".