331774740864 has 384 divisors, whose sum is σ = 1118776538880. Its totient is φ = 92397957120.

The previous prime is 331774740793. The next prime is 331774740877. The reversal of 331774740864 is 468047477133.

331774740864 is a `hidden beast` number, since 3 + 3 + 177 + 4 + 7 + 408 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×331774740864² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331774740864.

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 47 ways as a sum of consecutive naturals, for example, 304100959 + ... + 304102049.

It is an arithmetic number, because the mean of its divisors is an integer number (2913480570).

Almost surely, 2^331774740864 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 331774740864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559388269440).

331774740864 is an abundant number, since it is smaller than the sum of its proper divisors (787001798016).

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

331774740864 is a wasteful number, since it uses less digits than its factorization.

331774740864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038 (or 2023 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 54.

The spelling of 331774740864 in words is "three hundred thirty-one billion, seven hundred seventy-four million, seven hundred forty thousand, eight hundred sixty-four".