3651663528 has 48 divisors (see below), whose sum is σ = 10230959700. Its totient is φ = 1175247360.

The previous prime is 3651663497. The next prime is 3651663539. The reversal of 3651663528 is 8253661563.

3651663528 is a `hidden beast` number, since 3 + 6 + 5 + 1 + 6 + 635 + 2 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3462380964 + 189282564 = 58842^2 + 13758^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 872353 + ... + 876528.

Almost surely, 2^3651663528 is an apocalyptic number.

It is an amenable number.

3651663528 is an abundant number, since it is smaller than the sum of its proper divisors (6579296172).

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

3651663528 is a wasteful number, since it uses less digits than its factorization.

3651663528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748922 (or 1748915 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 3651663528 is about 60428.9957553491. The cubic root of 3651663528 is about 1539.9155977805.

The spelling of 3651663528 in words is "three billion, six hundred fifty-one million, six hundred sixty-three thousand, five hundred twenty-eight".