31432534221605 has 64 divisors (see below), whose sum is σ = 41943405312000. Its totient is φ = 22421322443520.

The previous prime is 31432534221589. The next prime is 31432534221611. The reversal of 31432534221605 is 50612243523413.

It is not a de Polignac number, because 31432534221605 - 2⁴ = 31432534221589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 836553599 + ... + 836591171.

It is an arithmetic number, because the mean of its divisors is an integer number (655365708000).

Almost surely, 2^{31432534221605} is an apocalyptic number.

It is an amenable number.

31432534221605 is a deficient number, since it is larger than the sum of its proper divisors (10510871090395).

31432534221605 is a wasteful number, since it uses less digits than its factorization.

31432534221605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38634.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 31432534221605 in words is "thirty-one trillion, four hundred thirty-two billion, five hundred thirty-four million, two hundred twenty-one thousand, six hundred five".