723246320447 has 16 divisors (see below), whose sum is σ = 870489196800. Its totient is φ = 587015320320.

The previous prime is 723246320431. The next prime is 723246320471. The reversal of 723246320447 is 744023642327.

It is a cyclic number.

It is not a de Polignac number, because 723246320447 - 2⁴ = 723246320431 is a prime.

It is a super-2 number, since 2×723246320447² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 723246320398 and 723246320407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723246320047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029797 + ... + 1583342.

It is an arithmetic number, because the mean of its divisors is an integer number (54405574800).

Almost surely, 2^723246320447 is an apocalyptic number.

723246320447 is a deficient number, since it is larger than the sum of its proper divisors (147242876353).

723246320447 is a wasteful number, since it uses less digits than its factorization.

723246320447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615246.

The product of its (nonzero) digits is 1354752, while the sum is 44.

The spelling of 723246320447 in words is "seven hundred twenty-three billion, two hundred forty-six million, three hundred twenty thousand, four hundred forty-seven".