3810644988 has 12 divisors (see below), whose sum is σ = 8891505000. Its totient is φ = 1270214992.

The previous prime is 3810644987. The next prime is 3810645017. The reversal of 3810644988 is 8894460183.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3810644988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3810644987) 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, 158776863 + ... + 158776886.

It is an arithmetic number, because the mean of its divisors is an integer number (740958750).

Almost surely, 2^3810644988 is an apocalyptic number.

It is an amenable number.

3810644988 is an abundant number, since it is smaller than the sum of its proper divisors (5080860012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3810644988 is a wasteful number, since it uses less digits than its factorization.

3810644988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317553756 (or 317553754 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 3810644988 is about 61730.4219003888. The cubic root of 3810644988 is about 1561.9465330030.

The spelling of 3810644988 in words is "three billion, eight hundred ten million, six hundred forty-four thousand, nine hundred eighty-eight".