3652646399 has 16 divisors (see below), whose sum is σ = 3898713600. Its totient is φ = 3414545376.

The previous prime is 3652646383. The next prime is 3652646411. The reversal of 3652646399 is 9936462563.

It is a cyclic number.

It is not a de Polignac number, because 3652646399 - 2⁴ = 3652646383 is a prime.

It is a super-2 number, since 2×3652646399² = 26683651432255334402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3652646399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3652646329) 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, 226982 + ... + 242540.

It is an arithmetic number, because the mean of its divisors is an integer number (243669600).

Almost surely, 2^3652646399 is an apocalyptic number.

3652646399 is a deficient number, since it is larger than the sum of its proper divisors (246067201).

3652646399 is a wasteful number, since it uses less digits than its factorization.

3652646399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15814.

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

The square root of 3652646399 is about 60437.1276534549. The cubic root of 3652646399 is about 1540.0537451024.

The spelling of 3652646399 in words is "three billion, six hundred fifty-two million, six hundred forty-six thousand, three hundred ninety-nine".