3825512644 has 24 divisors (see below), whose sum is σ = 6736180248. Its totient is φ = 1900926720.

The previous prime is 3825512629. The next prime is 3825512657. The reversal of 3825512644 is 4462155283.

It can be written as a sum of positive squares in 4 ways, for example, as 812820100 + 3012692544 = 28510^2 + 54888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3825512597 and 3825512606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441942 + ... + 450514.

It is an arithmetic number, because the mean of its divisors is an integer number (280674177).

Almost surely, 2^3825512644 is an apocalyptic number.

It is an amenable number.

3825512644 is a deficient number, since it is larger than the sum of its proper divisors (2910667604).

3825512644 is a wasteful number, since it uses less digits than its factorization.

3825512644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9255 (or 9253 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The square root of 3825512644 is about 61850.7287265073. The cubic root of 3825512644 is about 1563.9752663196.

The spelling of 3825512644 in words is "three billion, eight hundred twenty-five million, five hundred twelve thousand, six hundred forty-four".