731008696321 has 8 divisors (see below), whose sum is σ = 734093539200. Its totient is φ = 727930328832.

The previous prime is 731008696289. The next prime is 731008696343. The reversal of 731008696321 is 123696800137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 731008696321 - 2⁵ = 731008696289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731008696351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1392525 + ... + 1844218.

It is an arithmetic number, because the mean of its divisors is an integer number (91761692400).

Almost surely, 2^731008696321 is an apocalyptic number.

It is an amenable number.

731008696321 is a deficient number, since it is larger than the sum of its proper divisors (3084842879).

731008696321 is a wasteful number, since it uses less digits than its factorization.

731008696321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237695.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 731008696321 in words is "seven hundred thirty-one billion, eight million, six hundred ninety-six thousand, three hundred twenty-one".