31673648424 has 256 divisors, whose sum is σ = 91146228480. Its totient is φ = 9086238720.

The previous prime is 31673648423. The next prime is 31673648431. The reversal of 31673648424 is 42484637613.

It is not an unprimeable number, because it can be changed into a prime (31673648423) 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 63 ways as a sum of consecutive naturals, for example, 99916714 + ... + 99917030.

It is an arithmetic number, because the mean of its divisors is an integer number (356039955).

Almost surely, 2^31673648424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31673648424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45573114240).

31673648424 is an abundant number, since it is smaller than the sum of its proper divisors (59472580056).

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

31673648424 is a wasteful number, since it uses less digits than its factorization.

31673648424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 616 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 48.

The spelling of 31673648424 in words is "thirty-one billion, six hundred seventy-three million, six hundred forty-eight thousand, four hundred twenty-four".