3825577638 has 12 divisors (see below), whose sum is σ = 8288751588. Its totient is φ = 1275192540.

The previous prime is 3825577633. The next prime is 3825577663. The reversal of 3825577638 is 8367755283.

3825577638 is a `hidden beast` number, since 3 + 8 + 2 + 5 + 577 + 63 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3825577631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106266028 + ... + 106266063.

It is an arithmetic number, because the mean of its divisors is an integer number (690729299).

Almost surely, 2^3825577638 is an apocalyptic number.

3825577638 is an abundant number, since it is smaller than the sum of its proper divisors (4463173950).

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

3825577638 is a wasteful number, since it uses less digits than its factorization.

3825577638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212532099 (or 212532096 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The square root of 3825577638 is about 61851.2541344151. The cubic root of 3825577638 is about 1563.9841233837.

The spelling of 3825577638 in words is "three billion, eight hundred twenty-five million, five hundred seventy-seven thousand, six hundred thirty-eight".