423257776328 has 16 divisors (see below), whose sum is σ = 802525279500. Its totient is φ = 209251035136.

The previous prime is 423257776327. The next prime is 423257776339. The reversal of 423257776328 is 823677752324.

It can be written as a sum of positive squares in 2 ways, for example, as 351338336644 + 71919439684 = 592738^2 + 268178^2 .

It is not an unprimeable number, because it can be changed into a prime (423257776327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297230873 + ... + 297232296.

Almost surely, 2^423257776328 is an apocalyptic number.

It is an amenable number.

423257776328 is a deficient number, since it is larger than the sum of its proper divisors (379267503172).

423257776328 is a wasteful number, since it uses less digits than its factorization.

423257776328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594463264 (or 594463260 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 56.

The spelling of 423257776328 in words is "four hundred twenty-three billion, two hundred fifty-seven million, seven hundred seventy-six thousand, three hundred twenty-eight".