4845136581 has 20 divisors (see below), whose sum is σ = 7360478400. Its totient is φ = 3175340616.

The previous prime is 4845136579. The next prime is 4845136589. The reversal of 4845136581 is 1856315484.

4845136581 is a `hidden beast` number, since 4 + 84 + 513 + 6 + 58 + 1 = 666.

It is not a de Polignac number, because 4845136581 - 2¹ = 4845136579 is a prime.

It is a super-2 number, since 2×4845136581² = 46950696977088739122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4845136589) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 502141 + ... + 511698.

It is an arithmetic number, because the mean of its divisors is an integer number (368023920).

Almost surely, 2^4845136581 is an apocalyptic number.

It is an amenable number.

4845136581 is a deficient number, since it is larger than the sum of its proper divisors (2515341819).

4845136581 is a wasteful number, since it uses less digits than its factorization.

4845136581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013910 (or 1013901 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 4845136581 is about 69607.0153145500. The cubic root of 4845136581 is about 1692.1362969275.

The spelling of 4845136581 in words is "four billion, eight hundred forty-five million, one hundred thirty-six thousand, five hundred eighty-one".