28714288693 has 2 divisors, whose sum is σ = 28714288694. Its totient is φ = 28714288692.

The previous prime is 28714288679. The next prime is 28714288777. The reversal of 28714288693 is 39688241782.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23298359044 + 5415929649 = 152638^2 + 73593^2 .

It is a cyclic number.

It is not a de Polignac number, because 28714288693 - 2⁵ = 28714288661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28714288663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14357144346 + 14357144347.

It is an arithmetic number, because the mean of its divisors is an integer number (14357144347).

Almost surely, 2^28714288693 is an apocalyptic number.

It is an amenable number.

28714288693 is a deficient number, since it is larger than the sum of its proper divisors (1).

28714288693 is an equidigital number, since it uses as much as digits as its factorization.

28714288693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9289728, while the sum is 58.

The spelling of 28714288693 in words is "twenty-eight billion, seven hundred fourteen million, two hundred eighty-eight thousand, six hundred ninety-three".