31445846784 has 144 divisors (see below), whose sum is σ = 101444864640. Its totient is φ = 9529021440.

The previous prime is 31445846779. The next prime is 31445846819. The reversal of 31445846784 is 48764854413.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 31445846784.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130762 + ... + 282825.

Almost surely, 2^31445846784 is an apocalyptic number.

It is an amenable number.

31445846784 is an abundant number, since it is smaller than the sum of its proper divisors (69999017856).

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

31445846784 is a wasteful number, since it uses less digits than its factorization.

31445846784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413623 (or 413603 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The spelling of 31445846784 in words is "thirty-one billion, four hundred forty-five million, eight hundred forty-six thousand, seven hundred eighty-four".