731329690312 has 64 divisors (see below), whose sum is σ = 1487403388800. Its totient is φ = 335101831680.

The previous prime is 731329690297. The next prime is 731329690313. The reversal of 731329690312 is 213096923137.

It is not an unprimeable number, because it can be changed into a prime (731329690313) 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, 11454237 + ... + 11517907.

It is an arithmetic number, because the mean of its divisors is an integer number (23240677950).

Almost surely, 2^731329690312 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 731329690312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743701694400).

731329690312 is an abundant number, since it is smaller than the sum of its proper divisors (756073698488).

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

731329690312 is a wasteful number, since it uses less digits than its factorization.

731329690312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64486 (or 64482 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 46.

The spelling of 731329690312 in words is "seven hundred thirty-one billion, three hundred twenty-nine million, six hundred ninety thousand, three hundred twelve".