4281630561 has 24 divisors (see below), whose sum is σ = 6662521320. Its totient is φ = 2633976576.

The previous prime is 4281630559. The next prime is 4281630653. The reversal of 4281630561 is 1650361824.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 405821025 + 3875809536 = 20145^2 + 62256^2 .

It is not a de Polignac number, because 4281630561 - 2¹ = 4281630559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4281630461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 658635 + ... + 665103.

It is an arithmetic number, because the mean of its divisors is an integer number (277605055).

Almost surely, 2^4281630561 is an apocalyptic number.

It is an amenable number.

4281630561 is a deficient number, since it is larger than the sum of its proper divisors (2380890759).

4281630561 is a wasteful number, since it uses less digits than its factorization.

4281630561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12145 (or 12142 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 4281630561 is about 65434.1696745668. The cubic root of 4281630561 is about 1623.8144328856.

The spelling of 4281630561 in words is "four billion, two hundred eighty-one million, six hundred thirty thousand, five hundred sixty-one".