4964720581 has 2 divisors, whose sum is σ = 4964720582. Its totient is φ = 4964720580.

The previous prime is 4964720573. The next prime is 4964720609. The reversal of 4964720581 is 1850274694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4821080356 + 143640225 = 69434^2 + 11985^2 .

It is a cyclic number.

It is not a de Polignac number, because 4964720581 - 2³ = 4964720573 is a prime.

It is a super-2 number, since 2×4964720581² = 49296900894809955122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4964720561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2482360290 + 2482360291.

It is an arithmetic number, because the mean of its divisors is an integer number (2482360291).

Almost surely, 2^4964720581 is an apocalyptic number.

It is an amenable number.

4964720581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4964720581 is an equidigital number, since it uses as much as digits as its factorization.

4964720581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 4964720581 is about 70460.7733494318. The cubic root of 4964720581 is about 1705.9446531175.

The spelling of 4964720581 in words is "four billion, nine hundred sixty-four million, seven hundred twenty thousand, five hundred eighty-one".