5581286791 has 2 divisors, whose sum is σ = 5581286792. Its totient is φ = 5581286790.

The previous prime is 5581286773. The next prime is 5581286831. The reversal of 5581286791 is 1976821855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5581286791 - 2²¹ = 5579189639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5581286701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2790643395 + 2790643396.

It is an arithmetic number, because the mean of its divisors is an integer number (2790643396).

Almost surely, 2^5581286791 is an apocalyptic number.

5581286791 is a deficient number, since it is larger than the sum of its proper divisors (1).

5581286791 is an equidigital number, since it uses as much as digits as its factorization.

5581286791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 52.

The square root of 5581286791 is about 74708.0102197883. The cubic root of 5581286791 is about 1773.8277564224.

The spelling of 5581286791 in words is "five billion, five hundred eighty-one million, two hundred eighty-six thousand, seven hundred ninety-one".