31355545432 has 16 divisors (see below), whose sum is σ = 61347806640. Its totient is φ = 14996130336.

The previous prime is 31355545427. The next prime is 31355545477. The reversal of 31355545432 is 23454555313.

It is a congruent number.

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, 85205103 + ... + 85205470.

It is an arithmetic number, because the mean of its divisors is an integer number (3834237915).

Almost surely, 2^31355545432 is an apocalyptic number.

It is an amenable number.

31355545432 is a deficient number, since it is larger than the sum of its proper divisors (29992261208).

31355545432 is a wasteful number, since it uses less digits than its factorization.

31355545432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170410602 (or 170410598 counting only the distinct ones).

The product of its digits is 540000, while the sum is 40.

The spelling of 31355545432 in words is "thirty-one billion, three hundred fifty-five million, five hundred forty-five thousand, four hundred thirty-two".