3801645989 has 16 divisors (see below), whose sum is σ = 4162704000. Its totient is φ = 3458064960.

The previous prime is 3801645983. The next prime is 3801646007. The reversal of 3801645989 is 9895461083.

It is a cyclic number.

It is not a de Polignac number, because 3801645989 - 2⁴ = 3801645973 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3801645989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3801645983) 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, 80672 + ... + 118790.

It is an arithmetic number, because the mean of its divisors is an integer number (260169000).

Almost surely, 2^3801645989 is an apocalyptic number.

It is an amenable number.

3801645989 is a deficient number, since it is larger than the sum of its proper divisors (361058011).

3801645989 is a wasteful number, since it uses less digits than its factorization.

3801645989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38348.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 3801645989 is about 61657.4893180058. The cubic root of 3801645989 is about 1560.7160296412.

The spelling of 3801645989 in words is "three billion, eight hundred one million, six hundred forty-five thousand, nine hundred eighty-nine".