31784579996 has 12 divisors (see below), whose sum is σ = 59901708552. Its totient is φ = 14669806128.

The previous prime is 31784579987. The next prime is 31784580007. The reversal of 31784579996 is 69997548713.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305620910 + ... + 305621013.

It is an arithmetic number, because the mean of its divisors is an integer number (4991809046).

Almost surely, 2^31784579996 is an apocalyptic number.

It is an amenable number.

31784579996 is a deficient number, since it is larger than the sum of its proper divisors (28117128556).

31784579996 is a wasteful number, since it uses less digits than its factorization.

31784579996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611241940 (or 611241938 counting only the distinct ones).

The product of its digits is 102876480, while the sum is 68.

The spelling of 31784579996 in words is "thirty-one billion, seven hundred eighty-four million, five hundred seventy-nine thousand, nine hundred ninety-six".