3643869998 has 32 divisors (see below), whose sum is σ = 5935845888. Its totient is φ = 1670860800.

The previous prime is 3643869961. The next prime is 3643870007. The reversal of 3643869998 is 8999683463.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2049686 + ... + 2051462.

It is an arithmetic number, because the mean of its divisors is an integer number (185495184).

Almost surely, 2^3643869998 is an apocalyptic number.

3643869998 is a deficient number, since it is larger than the sum of its proper divisors (2291975890).

3643869998 is a wasteful number, since it uses less digits than its factorization.

3643869998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308.

The product of its digits is 60466176, while the sum is 65.

The square root of 3643869998 is about 60364.4762919385. The cubic root of 3643869998 is about 1538.8193004904.

The spelling of 3643869998 in words is "three billion, six hundred forty-three million, eight hundred sixty-nine thousand, nine hundred ninety-eight".