3638741712 has 80 divisors (see below), whose sum is σ = 9628365888. Its totient is φ = 1183703040.

The previous prime is 3638741707. The next prime is 3638741723. The reversal of 3638741712 is 2171478363.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487287 + ... + 494697.

Almost surely, 2^3638741712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3638741712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4814182944).

3638741712 is an abundant number, since it is smaller than the sum of its proper divisors (5989624176).

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

3638741712 is a wasteful number, since it uses less digits than its factorization.

3638741712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7668 (or 7662 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 3638741712 is about 60321.9836543859. The cubic root of 3638741712 is about 1538.0970637407.

The spelling of 3638741712 in words is "three billion, six hundred thirty-eight million, seven hundred forty-one thousand, seven hundred twelve".