42723537232 has 20 divisors (see below), whose sum is σ = 83408741856. Its totient is φ = 21198700640.

The previous prime is 42723537229. The next prime is 42723537239. The reversal of 42723537232 is 23273532724.

It is a super-2 number, since 2×42723537232² (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 (42723537239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10189588 + ... + 10193779.

Almost surely, 2^42723537232 is an apocalyptic number.

It is an amenable number.

42723537232 is a deficient number, since it is larger than the sum of its proper divisors (40685204624).

42723537232 is a wasteful number, since it uses less digits than its factorization.

42723537232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20383506 (or 20383500 counting only the distinct ones).

The product of its digits is 423360, while the sum is 40.

The spelling of 42723537232 in words is "forty-two billion, seven hundred twenty-three million, five hundred thirty-seven thousand, two hundred thirty-two".