728630584331 has 8 divisors (see below), whose sum is σ = 784694132880. Its totient is φ = 672569184672.

The previous prime is 728630584321. The next prime is 728630584333. The reversal of 728630584331 is 133485036827.

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 728630584331 - 2⁶ = 728630584267 is a prime.

It is a super-2 number, since 2×728630584331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 728630584331.

It is not an unprimeable number, because it can be changed into a prime (728630584333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 205001 + ... + 1224453.

It is an arithmetic number, because the mean of its divisors is an integer number (98086766610).

Almost surely, 2^728630584331 is an apocalyptic number.

728630584331 is a deficient number, since it is larger than the sum of its proper divisors (56063548549).

728630584331 is a wasteful number, since it uses less digits than its factorization.

728630584331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074445.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 728630584331 in words is "seven hundred twenty-eight billion, six hundred thirty million, five hundred eighty-four thousand, three hundred thirty-one".