31382448621 has 8 divisors (see below), whose sum is σ = 41851766880. Its totient is φ = 20917381392.

The previous prime is 31382448607. The next prime is 31382448659. The reversal of 31382448621 is 12684428313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31382448621 - 2⁶ = 31382448557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31382448421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045491 + ... + 1075088.

It is an arithmetic number, because the mean of its divisors is an integer number (5231470860).

Almost surely, 2^31382448621 is an apocalyptic number.

It is an amenable number.

31382448621 is a deficient number, since it is larger than the sum of its proper divisors (10469318259).

31382448621 is a wasteful number, since it uses less digits than its factorization.

31382448621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125515.

The product of its digits is 221184, while the sum is 42.

The spelling of 31382448621 in words is "thirty-one billion, three hundred eighty-two million, four hundred forty-eight thousand, six hundred twenty-one".