3756564565 has 8 divisors (see below), whose sum is σ = 4854637368. Its totient is φ = 2774078400.

The previous prime is 3756564551. The next prime is 3756564569. The reversal of 3756564565 is 5654656573.

It can be written as a sum of positive squares in 4 ways, for example, as 251095716 + 3505468849 = 15846^2 + 59207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3756564565 - 2⁵ = 3756564533 is a prime.

It is a super-2 number, since 2×3756564565² = 28223554662027278450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3756564569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28896586 + ... + 28896715.

It is an arithmetic number, because the mean of its divisors is an integer number (606829671).

Almost surely, 2^3756564565 is an apocalyptic number.

It is an amenable number.

3756564565 is a deficient number, since it is larger than the sum of its proper divisors (1098072803).

3756564565 is a wasteful number, since it uses less digits than its factorization.

3756564565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57793319.

The product of its digits is 11340000, while the sum is 52.

The square root of 3756564565 is about 61290.8195817286. The cubic root of 3756564565 is about 1554.5222858194.

The spelling of 3756564565 in words is "three billion, seven hundred fifty-six million, five hundred sixty-four thousand, five hundred sixty-five".