32493394581 has 16 divisors (see below), whose sum is σ = 43408412160. Its totient is φ = 21620364480.

The previous prime is 32493394573. The next prime is 32493394643. The reversal of 32493394581 is 18549339423.

It is not a de Polignac number, because 32493394581 - 2³ = 32493394573 is a prime.

It is a super-2 number, since 2×32493394581² (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 (32493394511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3649371 + ... + 3658263.

It is an arithmetic number, because the mean of its divisors is an integer number (2713025760).

Almost surely, 2^32493394581 is an apocalyptic number.

It is an amenable number.

32493394581 is a deficient number, since it is larger than the sum of its proper divisors (10915017579).

32493394581 is a wasteful number, since it uses less digits than its factorization.

32493394581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11116.

The product of its digits is 2799360, while the sum is 51.

The spelling of 32493394581 in words is "thirty-two billion, four hundred ninety-three million, three hundred ninety-four thousand, five hundred eighty-one".