723128974669 has 8 divisors (see below), whose sum is σ = 756980137152. Its totient is φ = 689478709920.

The previous prime is 723128974663. The next prime is 723128974703. The reversal of 723128974669 is 966479821327.

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 723128974669 - 2⁵ = 723128974637 is a prime.

It is a super-2 number, since 2×723128974669² (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 723128974669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723128974663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50217067 + ... + 50231464.

It is an arithmetic number, because the mean of its divisors is an integer number (94622517144).

Almost surely, 2^723128974669 is an apocalyptic number.

It is an amenable number.

723128974669 is a deficient number, since it is larger than the sum of its proper divisors (33851162483).

723128974669 is a wasteful number, since it uses less digits than its factorization.

723128974669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100448867.

The product of its digits is 54867456, while the sum is 64.

The spelling of 723128974669 in words is "seven hundred twenty-three billion, one hundred twenty-eight million, nine hundred seventy-four thousand, six hundred sixty-nine".