3645269693 has 16 divisors (see below), whose sum is σ = 4167835056. Its totient is φ = 3158369280.

The previous prime is 3645269657. The next prime is 3645269707. The reversal of 3645269693 is 3969625463.

It can be written as a sum of positive squares in 8 ways, for example, as 349017124 + 3296252569 = 18682^2 + 57413^2 .

It is a cyclic number.

It is not a de Polignac number, because 3645269693 - 2⁸ = 3645269437 is a prime.

It is a super-2 number, since 2×3645269693² = 26575982269408628498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645269623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60323 + ... + 104543.

It is an arithmetic number, because the mean of its divisors is an integer number (260489691).

Almost surely, 2^3645269693 is an apocalyptic number.

It is an amenable number.

3645269693 is a deficient number, since it is larger than the sum of its proper divisors (522565363).

3645269693 is a wasteful number, since it uses less digits than its factorization.

3645269693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44624.

The product of its digits is 6298560, while the sum is 53.

The square root of 3645269693 is about 60376.0688766667. The cubic root of 3645269693 is about 1539.0163073316.

The spelling of 3645269693 in words is "three billion, six hundred forty-five million, two hundred sixty-nine thousand, six hundred ninety-three".