3681522792 has 128 divisors (see below), whose sum is σ = 10547097600. Its totient is φ = 1188981504.

The previous prime is 3681522763. The next prime is 3681522797. The reversal of 3681522792 is 2972251863.

3681522792 is a `hidden beast` number, since 36 + 8 + 1 + 522 + 7 + 92 = 666.

It is a super-2 number, since 2×3681522792² = 27107220136030950528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3681522797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2212953 + ... + 2214615.

It is an arithmetic number, because the mean of its divisors is an integer number (82399200).

Almost surely, 2^3681522792 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 3681522792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5273548800).

3681522792 is an abundant number, since it is smaller than the sum of its proper divisors (6865574808).

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

3681522792 is a wasteful number, since it uses less digits than its factorization.

3681522792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1982 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 3681522792 is about 60675.5534956213. The cubic root of 3681522792 is about 1544.1014513148.

The spelling of 3681522792 in words is "three billion, six hundred eighty-one million, five hundred twenty-two thousand, seven hundred ninety-two".