3826681664 has 56 divisors (see below), whose sum is σ = 8441545728. Its totient is φ = 1709176320.

The previous prime is 3826681619. The next prime is 3826681699. The reversal of 3826681664 is 4661866283.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48392 + ... + 99975.

It is an arithmetic number, because the mean of its divisors is an integer number (150741888).

Almost surely, 2^3826681664 is an apocalyptic number.

It is an amenable number.

3826681664 is an abundant number, since it is smaller than the sum of its proper divisors (4614864064).

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

3826681664 is a wasteful number, since it uses less digits than its factorization.

3826681664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148423 (or 148413 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 50.

The square root of 3826681664 is about 61860.1783379259. The cubic root of 3826681664 is about 1564.1345593200.

The spelling of 3826681664 in words is "three billion, eight hundred twenty-six million, six hundred eighty-one thousand, six hundred sixty-four".