31678589444 has 24 divisors (see below), whose sum is σ = 55769683200. Its totient is φ = 15744663360.

The previous prime is 31678589431. The next prime is 31678589447. The reversal of 31678589444 is 44498587613.

It is not an unprimeable number, because it can be changed into a prime (31678589447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 442592 + ... + 509160.

It is an arithmetic number, because the mean of its divisors is an integer number (2323736800).

Almost surely, 2^31678589444 is an apocalyptic number.

It is an amenable number.

31678589444 is a deficient number, since it is larger than the sum of its proper divisors (24091093756).

31678589444 is a wasteful number, since it uses less digits than its factorization.

31678589444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67283 (or 67281 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 59.

The spelling of 31678589444 in words is "thirty-one billion, six hundred seventy-eight million, five hundred eighty-nine thousand, four hundred forty-four".