3827861872 has 20 divisors (see below), whose sum is σ = 7518080320. Its totient is φ = 1887712128.

The previous prime is 3827861867. The next prime is 3827861897. The reversal of 3827861872 is 2781687283.

It is a super-2 number, since 2×3827861872² = 29305053022222688768, which contains 22 as substring.

It is a congruent number.

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, 1637472 + ... + 1639807.

It is an arithmetic number, because the mean of its divisors is an integer number (375904016).

Almost surely, 2^3827861872 is an apocalyptic number.

It is an amenable number.

3827861872 is a deficient number, since it is larger than the sum of its proper divisors (3690218448).

3827861872 is a wasteful number, since it uses less digits than its factorization.

3827861872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277360 (or 3277354 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 52.

The square root of 3827861872 is about 61869.7169219320. The cubic root of 3827861872 is about 1564.2953439140.

The spelling of 3827861872 in words is "three billion, eight hundred twenty-seven million, eight hundred sixty-one thousand, eight hundred seventy-two".