42064232531 has 16 divisors (see below), whose sum is σ = 43353037728. Its totient is φ = 40788384000.

The previous prime is 42064232527. The next prime is 42064232543. The reversal of 42064232531 is 13523246024.

It is a cyclic number.

It is not a de Polignac number, because 42064232531 - 2² = 42064232527 is a prime.

It is a super-2 number, since 2×42064232531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42064232131) 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, 10506176 + ... + 10510178.

It is an arithmetic number, because the mean of its divisors is an integer number (2709564858).

Almost surely, 2^42064232531 is an apocalyptic number.

42064232531 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42064232531 is a deficient number, since it is larger than the sum of its proper divisors (1288805197).

42064232531 is a wasteful number, since it uses less digits than its factorization.

42064232531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 42064232531 its reverse (13523246024), we get a palindrome (55587478555).

The spelling of 42064232531 in words is "forty-two billion, sixty-four million, two hundred thirty-two thousand, five hundred thirty-one".