31745771432 has 16 divisors (see below), whose sum is σ = 60276782400. Its totient is φ = 15671962800.

The previous prime is 31745771399. The next prime is 31745771461. The reversal of 31745771432 is 23417754713.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25114694 + ... + 25115957.

It is an arithmetic number, because the mean of its divisors is an integer number (3767298900).

Almost surely, 2^31745771432 is an apocalyptic number.

It is an amenable number.

31745771432 is a deficient number, since it is larger than the sum of its proper divisors (28531010968).

31745771432 is a wasteful number, since it uses less digits than its factorization.

31745771432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50230736 (or 50230732 counting only the distinct ones).

The product of its digits is 493920, while the sum is 44.

The spelling of 31745771432 in words is "thirty-one billion, seven hundred forty-five million, seven hundred seventy-one thousand, four hundred thirty-two".