3645376799 has 4 divisors (see below), whose sum is σ = 3647033736. Its totient is φ = 3643719864.

The previous prime is 3645376783. The next prime is 3645376807. The reversal of 3645376799 is 9976735463.

It is a happy number.

3645376799 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9976735463 = 37 ⋅269641499.

It is a cyclic number.

It is not a de Polignac number, because 3645376799 - 2⁴ = 3645376783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645372799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825164 + ... + 829569.

It is an arithmetic number, because the mean of its divisors is an integer number (911758434).

Almost surely, 2^3645376799 is an apocalyptic number.

3645376799 is a deficient number, since it is larger than the sum of its proper divisors (1656937).

3645376799 is a wasteful number, since it uses less digits than its factorization.

3645376799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656936.

The product of its digits is 25719120, while the sum is 59.

The square root of 3645376799 is about 60376.9558606593. The cubic root of 3645376799 is about 1539.0313804062.

The spelling of 3645376799 in words is "three billion, six hundred forty-five million, three hundred seventy-six thousand, seven hundred ninety-nine".