31366944768 has 192 divisors, whose sum is σ = 88675292160. Its totient is φ = 9842688000.

The previous prime is 31366944743. The next prime is 31366944809. The reversal of 31366944768 is 86744966313.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7044943 + ... + 7049393.

It is an arithmetic number, because the mean of its divisors is an integer number (461850480).

Almost surely, 2^31366944768 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 31366944768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44337646080).

31366944768 is an abundant number, since it is smaller than the sum of its proper divisors (57308347392).

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

31366944768 is a wasteful number, since it uses less digits than its factorization.

31366944768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544 (or 4524 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 57.

The spelling of 31366944768 in words is "thirty-one billion, three hundred sixty-six million, nine hundred forty-four thousand, seven hundred sixty-eight".