723463720561073 has 64 divisors (see below), whose sum is σ = 810926041766400. Its totient is φ = 643193377560576.

The previous prime is 723463720561067. The next prime is 723463720561151. The reversal of 723463720561073 is 370165027364327.

It is not a de Polignac number, because 723463720561073 - 2⁴⁴ = 705871534516657 is a prime.

It is a super-2 number, since 2×723463720561073² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723463720561273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71144032733 + ... + 71144042901.

It is an arithmetic number, because the mean of its divisors is an integer number (12670719402600).

Almost surely, 2^{723463720561073} is an apocalyptic number.

It is an amenable number.

723463720561073 is a deficient number, since it is larger than the sum of its proper divisors (87462321205327).

723463720561073 is a wasteful number, since it uses less digits than its factorization.

723463720561073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11959 (or 11921 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 56.

The spelling of 723463720561073 in words is "seven hundred twenty-three trillion, four hundred sixty-three billion, seven hundred twenty million, five hundred sixty-one thousand, seventy-three".