3631376646 has 12 divisors (see below), whose sum is σ = 7867982772. Its totient is φ = 1210458876.

The previous prime is 3631376633. The next prime is 3631376657. The reversal of 3631376646 is 6466731363.

3631376646 is a `hidden beast` number, since 3 + 631 + 3 + 7 + 6 + 6 + 4 + 6 = 666.

It is a super-2 number, since 2×3631376646² = 26373792690228418632, 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 5 ways as a sum of consecutive naturals, for example, 100871556 + ... + 100871591.

It is an arithmetic number, because the mean of its divisors is an integer number (655665231).

Almost surely, 2^3631376646 is an apocalyptic number.

3631376646 is an abundant number, since it is smaller than the sum of its proper divisors (4236606126).

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

3631376646 is a wasteful number, since it uses less digits than its factorization.

3631376646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201743155 (or 201743152 counting only the distinct ones).

The product of its digits is 979776, while the sum is 45.

The square root of 3631376646 is about 60260.9047890919. The cubic root of 3631376646 is about 1537.0586243657.

The spelling of 3631376646 in words is "three billion, six hundred thirty-one million, three hundred seventy-six thousand, six hundred forty-six".