3612683646 has 128 divisors (see below), whose sum is σ = 9842273280. Its totient is φ = 966556800.

The previous prime is 3612683629. The next prime is 3612683689. The reversal of 3612683646 is 6463862163.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 167436 + ... + 187776.

It is an arithmetic number, because the mean of its divisors is an integer number (76892760).

Almost surely, 2^3612683646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3612683646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4921136640).

3612683646 is an abundant number, since it is smaller than the sum of its proper divisors (6229589634).

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

3612683646 is a wasteful number, since it uses less digits than its factorization.

3612683646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20399 (or 20393 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 3612683646 is about 60105.6041147579. The cubic root of 3612683646 is about 1534.4166805369.

The spelling of 3612683646 in words is "three billion, six hundred twelve million, six hundred eighty-three thousand, six hundred forty-six".