4861284561 has 36 divisors (see below), whose sum is σ = 8431797504. Its totient is φ = 2688260400.

The previous prime is 4861284559. The next prime is 4861284563. The reversal of 4861284561 is 1654821684.

It is a happy number.

4861284561 is a `hidden beast` number, since 4 + 8 + 6 + 1 + 2 + 84 + 561 = 666.

It is an interprime number because it is at equal distance from previous prime (4861284559) and next prime (4861284563).

It is not a de Polignac number, because 4861284561 - 2¹ = 4861284559 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4861284563) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 164125 + ... + 191466.

Almost surely, 2^4861284561 is an apocalyptic number.

It is an amenable number.

4861284561 is a deficient number, since it is larger than the sum of its proper divisors (3570512943).

4861284561 is a wasteful number, since it uses less digits than its factorization.

4861284561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355642 (or 355632 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 4861284561 is about 69722.9127403610. The cubic root of 4861284561 is about 1694.0140756520.

The spelling of 4861284561 in words is "four billion, eight hundred sixty-one million, two hundred eighty-four thousand, five hundred sixty-one".