3818566672 has 10 divisors (see below), whose sum is σ = 7398472958. Its totient is φ = 1909283328.

The previous prime is 3818566669. The next prime is 3818566679. The reversal of 3818566672 is 2766658183.

It can be written as a sum of positive squares in only one way, i.e., 3711733776 + 106832896 = 60924^2 + 10336^2 .

It is a super-3 number, since 3×3818566672³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3818566679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119330193 + ... + 119330224.

Almost surely, 2^3818566672 is an apocalyptic number.

It is an amenable number.

3818566672 is a deficient number, since it is larger than the sum of its proper divisors (3579906286).

3818566672 is a wasteful number, since it uses less digits than its factorization.

3818566672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238660425 (or 238660419 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 3818566672 is about 61794.5521223352. The cubic root of 3818566672 is about 1563.0281244244.

The spelling of 3818566672 in words is "three billion, eight hundred eighteen million, five hundred sixty-six thousand, six hundred seventy-two".