32540745731 has 8 divisors (see below), whose sum is σ = 35045721984. Its totient is φ = 30036032640.

The previous prime is 32540745703. The next prime is 32540745779. The reversal of 32540745731 is 13754704523.

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 32540745731 - 2³⁴ = 15360876547 is a prime.

It is a super-2 number, since 2×32540745731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32540745031) 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, 245675 + ... + 354171.

It is an arithmetic number, because the mean of its divisors is an integer number (4380715248).

Almost surely, 2^32540745731 is an apocalyptic number.

32540745731 is a deficient number, since it is larger than the sum of its proper divisors (2504976253).

32540745731 is a wasteful number, since it uses less digits than its factorization.

32540745731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131581.

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 32540745731 in words is "thirty-two billion, five hundred forty million, seven hundred forty-five thousand, seven hundred thirty-one".