3818986964 has 36 divisors (see below), whose sum is σ = 7662588444. Its totient is φ = 1658921472.

The previous prime is 3818986957. The next prime is 3818986967. The reversal of 3818986964 is 4696898183.

3818986964 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 6 ways, for example, as 377991364 + 3440995600 = 19442^2 + 58660^2 .

It is a super-2 number, since 2×3818986964² = 29169322862403874592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3818986897 and 3818986906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3818986967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154667 + ... + 177650.

It is an arithmetic number, because the mean of its divisors is an integer number (212849679).

Almost surely, 2^3818986964 is an apocalyptic number.

3818986964 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3818986964 is an abundant number, since it is smaller than the sum of its proper divisors (3843601480).

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

3818986964 is a wasteful number, since it uses less digits than its factorization.

3818986964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332364 (or 332349 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 62.

The square root of 3818986964 is about 61797.9527492618. The cubic root of 3818986964 is about 1563.0854674166.

The spelling of 3818986964 in words is "three billion, eight hundred eighteen million, nine hundred eighty-six thousand, nine hundred sixty-four".