3858784672 has 24 divisors (see below), whose sum is σ = 7701055236. Its totient is φ = 1902961152.

The previous prime is 3858784663. The next prime is 3858784693. The reversal of 3858784672 is 2764878583.

It can be written as a sum of positive squares in 2 ways, for example, as 3823690896 + 35093776 = 61836^2 + 5924^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823603 + ... + 828274.

Almost surely, 2^3858784672 is an apocalyptic number.

3858784672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3858784672 is a deficient number, since it is larger than the sum of its proper divisors (3842270564).

3858784672 is a wasteful number, since it uses less digits than its factorization.

3858784672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651960 (or 1651952 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 58.

The square root of 3858784672 is about 62119.1167999031. The cubic root of 3858784672 is about 1568.4963590667.

The spelling of 3858784672 in words is "three billion, eight hundred fifty-eight million, seven hundred eighty-four thousand, six hundred seventy-two".