3645623896 has 32 divisors (see below), whose sum is σ = 7006618080. Its totient is φ = 1777248000.

The previous prime is 3645623881. The next prime is 3645623923. The reversal of 3645623896 is 6983265463.

It is a congruent number.

It is an unprimeable number.

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, 834550 + ... + 838906.

It is an arithmetic number, because the mean of its divisors is an integer number (218956815).

Almost surely, 2^3645623896 is an apocalyptic number.

It is an amenable number.

3645623896 is a deficient number, since it is larger than the sum of its proper divisors (3360994184).

3645623896 is a wasteful number, since it uses less digits than its factorization.

3645623896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955 (or 6951 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 52.

The square root of 3645623896 is about 60379.0021116613. The cubic root of 3645623896 is about 1539.0661533498.

The spelling of 3645623896 in words is "three billion, six hundred forty-five million, six hundred twenty-three thousand, eight hundred ninety-six".