723445672345 has 16 divisors (see below), whose sum is σ = 1002765339648. Its totient is φ = 495192759040.

The previous prime is 723445672319. The next prime is 723445672421. The reversal of 723445672345 is 543276544327.

It is not a de Polignac number, because 723445672345 - 2¹⁹ = 723445148057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 723445672292 and 723445672301.

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 15 ways as a sum of consecutive naturals, for example, 386868409 + ... + 386870278.

It is an arithmetic number, because the mean of its divisors is an integer number (62672833728).

Almost surely, 2^723445672345 is an apocalyptic number.

It is an amenable number.

723445672345 is a deficient number, since it is larger than the sum of its proper divisors (279319667303).

723445672345 is a wasteful number, since it uses less digits than its factorization.

723445672345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773738720.

The product of its digits is 16934400, while the sum is 52.

The spelling of 723445672345 in words is "seven hundred twenty-three billion, four hundred forty-five million, six hundred seventy-two thousand, three hundred forty-five".