3818736864 has 72 divisors (see below), whose sum is σ = 10868071032. Its totient is φ = 1271911680.

The previous prime is 3818736797. The next prime is 3818736881. The reversal of 3818736864 is 4686378183.

3818736864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Smith number, since the sum of its digits (54) 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 3818736864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422634 + ... + 431574.

It is an arithmetic number, because the mean of its divisors is an integer number (150945431).

Almost surely, 2^3818736864 is an apocalyptic number.

It is an amenable number.

3818736864 is an abundant number, since it is smaller than the sum of its proper divisors (7049334168).

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

3818736864 is a wasteful number, since it uses less digits than its factorization.

3818736864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10440 (or 10429 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The square root of 3818736864 is about 61795.9291863145. The cubic root of 3818736864 is about 1563.0513452604.

The spelling of 3818736864 in words is "three billion, eight hundred eighteen million, seven hundred thirty-six thousand, eight hundred sixty-four".