4231919608569 has 81 divisors (see below), whose sum is σ = 6446907116559. Its totient is φ = 2674970192160.

The previous prime is 4231919608489. The next prime is 4231919608597. The reversal of 4231919608569 is 9658069191324.

The square root of 4231919608569 is 2057163.

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

4231919608569 is a `hidden beast` number, since 4 + 2 + 3 + 1 + 9 + 1 + 9 + 60 + 8 + 569 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3786779781225 + 445139827344 = 1945965^2 + 667188^2 .

It is not a de Polignac number, because 4231919608569 - 2¹¹ = 4231919606521 is a prime.

It is a super-2 number, since 2×4231919608569² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4231919608769) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 9818838784 + ... + 9818839214.

Almost surely, 2^{4231919608569} is an apocalyptic number.

4231919608569 is the 2057163-rd square number.

4231919608569 is the 1028582-nd centered octagonal number.

It is an amenable number.

4231919608569 is a deficient number, since it is larger than the sum of its proper divisors (2214987507990).

4231919608569 is an frugal number, since it uses more digits than its factorization.

4231919608569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 4231919608569 in words is "four trillion, two hundred thirty-one billion, nine hundred nineteen million, six hundred eight thousand, five hundred sixty-nine".