423263444569 has 9 divisors (see below), whose sum is σ = 492372978111. Its totient is φ = 362793334680.

The previous prime is 423263444567. The next prime is 423263444623. The reversal of 423263444569 is 965444362324.

The square root of 423263444569 is 650587.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1101376969 + 422162067600 = 33187^2 + 649740^2 .

It is not a de Polignac number, because 423263444569 - 2¹ = 423263444567 is a prime.

It is a super-2 number, since 2×423263444569² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (423263444567) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4507639 + ... + 4600579.

It is an arithmetic number, because the mean of its divisors is an integer number (54708108679).

Almost surely, 2^423263444569 is an apocalyptic number.

423263444569 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

423263444569 is the 650587-th square number.

423263444569 is the 325294-th centered octagonal number.

It is an amenable number.

423263444569 is a deficient number, since it is larger than the sum of its proper divisors (69109533542).

423263444569 is an frugal number, since it uses more digits than its factorization.

423263444569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185896 (or 92948 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 52.

The spelling of 423263444569 in words is "four hundred twenty-three billion, two hundred sixty-three million, four hundred forty-four thousand, five hundred sixty-nine".