3847464864 has 72 divisors (see below), whose sum is σ = 10949030820. Its totient is φ = 1281573888.

The previous prime is 3847464857. The next prime is 3847464889. The reversal of 3847464864 is 4684647483.

3847464864 is a `hidden beast` number, since 38 + 474 + 64 + 86 + 4 = 666.

3847464864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2840037264 + 1007427600 = 53292^2 + 31740^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 3847464864.

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, 488284 + ... + 496100.

Almost surely, 2^3847464864 is an apocalyptic number.

It is an amenable number.

3847464864 is an abundant number, since it is smaller than the sum of its proper divisors (7101565956).

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

3847464864 is a wasteful number, since it uses less digits than its factorization.

3847464864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9542 (or 9531 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 54.

The square root of 3847464864 is about 62027.9361578313. The cubic root of 3847464864 is about 1566.9611202893.

The spelling of 3847464864 in words is "three billion, eight hundred forty-seven million, four hundred sixty-four thousand, eight hundred sixty-four".