31142446532470 has 32 divisors (see below), whose sum is σ = 68992496935488. Its totient is φ = 9856070990208.

The previous prime is 31142446532441. The next prime is 31142446532489. The reversal of 31142446532470 is 7423564424113.

It is a self number, because there is not a number n which added to its sum of digits gives 31142446532470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17111233449 + ... + 17111235268.

It is an arithmetic number, because the mean of its divisors is an integer number (2156015529234).

Almost surely, 2^{31142446532470} is an apocalyptic number.

31142446532470 is an abundant number, since it is smaller than the sum of its proper divisors (37850050403018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31142446532470 is a wasteful number, since it uses less digits than its factorization.

31142446532470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34222468744.

The product of its (nonzero) digits is 1935360, while the sum is 46.

The spelling of 31142446532470 in words is "thirty-one trillion, one hundred forty-two billion, four hundred forty-six million, five hundred thirty-two thousand, four hundred seventy".