31973378934 has 16 divisors (see below), whose sum is σ = 73082009088. Its totient is φ = 9135251112.

The previous prime is 31973378917. The next prime is 31973378959. The reversal of 31973378934 is 43987337913.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 380635422 + ... + 380635505.

It is an arithmetic number, because the mean of its divisors is an integer number (4567625568).

Almost surely, 2^31973378934 is an apocalyptic number.

31973378934 is an abundant number, since it is smaller than the sum of its proper divisors (41108630154).

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

31973378934 is a wasteful number, since it uses less digits than its factorization.

31973378934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761270939.

The product of its digits is 10287648, while the sum is 57.

The spelling of 31973378934 in words is "thirty-one billion, nine hundred seventy-three million, three hundred seventy-eight thousand, nine hundred thirty-four".