42537232731 has 8 divisors (see below), whose sum is σ = 64818640384. Its totient is φ = 24306990120.

The previous prime is 42537232729. The next prime is 42537232763. The reversal of 42537232731 is 13723273524.

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

It is not a de Polignac number, because 42537232731 - 2¹ = 42537232729 is a prime.

It is a super-2 number, since 2×42537232731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42537232731.

It is not an unprimeable number, because it can be changed into a prime (42537232531) 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, 1012791235 + ... + 1012791276.

It is an arithmetic number, because the mean of its divisors is an integer number (8102330048).

Almost surely, 2^42537232731 is an apocalyptic number.

42537232731 is a deficient number, since it is larger than the sum of its proper divisors (22281407653).

42537232731 is a wasteful number, since it uses less digits than its factorization.

42537232731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025582521.

The product of its digits is 211680, while the sum is 39.

The spelling of 42537232731 in words is "forty-two billion, five hundred thirty-seven million, two hundred thirty-two thousand, seven hundred thirty-one".