5436630581 has 2 divisors, whose sum is σ = 5436630582. Its totient is φ = 5436630580.

The previous prime is 5436630539. The next prime is 5436630599. The reversal of 5436630581 is 1850366345.

5436630581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2963060356 + 2473570225 = 54434^2 + 49735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5436630581 is a prime.

It is a super-2 number, since 2×5436630581² = 59113904148528795122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5436630181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2718315290 + 2718315291.

It is an arithmetic number, because the mean of its divisors is an integer number (2718315291).

Almost surely, 2^5436630581 is an apocalyptic number.

It is an amenable number.

5436630581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5436630581 is an equidigital number, since it uses as much as digits as its factorization.

5436630581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 5436630581 is about 73733.5105701607. The cubic root of 5436630581 is about 1758.3686869726.

The spelling of 5436630581 in words is "five billion, four hundred thirty-six million, six hundred thirty thousand, five hundred eighty-one".