28342284577 has 2 divisors, whose sum is σ = 28342284578. Its totient is φ = 28342284576.

The previous prime is 28342284499. The next prime is 28342284613. The reversal of 28342284577 is 77548224382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15355175056 + 12987109521 = 123916^2 + 113961^2 .

It is a cyclic number.

It is not a de Polignac number, because 28342284577 - 2¹⁵ = 28342251809 is a prime.

It is not a weakly prime, because it can be changed into another prime (28342284877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14171142288 + 14171142289.

It is an arithmetic number, because the mean of its divisors is an integer number (14171142289).

Almost surely, 2^28342284577 is an apocalyptic number.

It is an amenable number.

28342284577 is a deficient number, since it is larger than the sum of its proper divisors (1).

28342284577 is an equidigital number, since it uses as much as digits as its factorization.

28342284577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6021120, while the sum is 52.

The spelling of 28342284577 in words is "twenty-eight billion, three hundred forty-two million, two hundred eighty-four thousand, five hundred seventy-seven".