723499945744 has 45 divisors (see below), whose sum is σ = 1408184741781. Its totient is φ = 360104935680.

The previous prime is 723499945733. The next prime is 723499945757. The reversal of 723499945744 is 447549994327.

The square root of 723499945744 is 850588.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 195098890000 + 528401055744 = 441700^2 + 726912^2 .

It is a Duffinian number.

Its product of digits (274337280) is a multiple of the sum of its prime factors (1944).

It is a self number, because there is not a number n which added to its sum of digits gives 723499945744.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 1146592309 + ... + 1146592939.

Almost surely, 2^723499945744 is an apocalyptic number.

723499945744 is the 850588-th square number.

It is an amenable number.

723499945744 is a deficient number, since it is larger than the sum of its proper divisors (684684796037).

723499945744 is an frugal number, since it uses more digits than its factorization.

723499945744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944 (or 970 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 67.

The spelling of 723499945744 in words is "seven hundred twenty-three billion, four hundred ninety-nine million, nine hundred forty-five thousand, seven hundred forty-four".