3958045569 has 27 divisors (see below), whose sum is σ = 5822383203. Its totient is φ = 2591008992.

The previous prime is 3958045561. The next prime is 3958045583. The reversal of 3958045569 is 9655408593.

It is a happy number.

The square root of 3958045569 is 62913.

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

3958045569 is a `hidden beast` number, since 3 + 9 + 5 + 80 + 4 + 556 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25250625 + 3932794944 = 5025^2 + 62712^2 .

It is not a de Polignac number, because 3958045569 - 2³ = 3958045561 is a prime.

It is a super-2 number, since 2×3958045569² = 31332249452561067522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3958045561) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12645357 + ... + 12645669.

Almost surely, 2^3958045569 is an apocalyptic number.

3958045569 is the 62913-rd square number.

3958045569 is the 31457-th centered octagonal number.

It is an amenable number.

3958045569 is a deficient number, since it is larger than the sum of its proper divisors (1864337634).

3958045569 is an frugal number, since it uses more digits than its factorization.

3958045569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The cubic root of 3958045569 is about 1581.8316589590.

The spelling of 3958045569 in words is "three billion, nine hundred fifty-eight million, forty-five thousand, five hundred sixty-nine".