3868506872 has 16 divisors (see below), whose sum is σ = 7256028600. Its totient is φ = 1933565920.

The previous prime is 3868506871. The next prime is 3868506931. The reversal of 3868506872 is 2786058683.

It is a super-2 number, since 2×3868506872² = 29930690837422448768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3868506871) 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, 61622 + ... + 107397.

Almost surely, 2^3868506872 is an apocalyptic number.

It is an amenable number.

3868506872 is a deficient number, since it is larger than the sum of its proper divisors (3387521728).

3868506872 is a wasteful number, since it uses less digits than its factorization.

3868506872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171886 (or 171882 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The square root of 3868506872 is about 62197.3220645391. The cubic root of 3868506872 is about 1569.8125287667.

The spelling of 3868506872 in words is "three billion, eight hundred sixty-eight million, five hundred six thousand, eight hundred seventy-two".