731522314011264 has 128 divisors (see below), whose sum is σ = 1954788169783680. Its totient is φ = 242374861701120.

The previous prime is 731522314011263. The next prime is 731522314011287. The reversal of 731522314011264 is 462110413225137.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (731522314011263) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3316654012 + ... + 3316874564.

It is an arithmetic number, because the mean of its divisors is an integer number (15271782576435).

Almost surely, 2^{731522314011264} 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 731522314011264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (977394084891840).

731522314011264 is an abundant number, since it is smaller than the sum of its proper divisors (1223265855772416).

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

731522314011264 is a wasteful number, since it uses less digits than its factorization.

731522314011264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272458 (or 272446 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 731522314011264 in words is "seven hundred thirty-one trillion, five hundred twenty-two billion, three hundred fourteen million, eleven thousand, two hundred sixty-four".