28100822693 has 2 divisors, whose sum is σ = 28100822694. Its totient is φ = 28100822692.

The previous prime is 28100822669. The next prime is 28100822699. The reversal of 28100822693 is 39622800182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28100822689 + 4 = 167633^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 28100822693 - 2¹⁰ = 28100821669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28100822693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28100822699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14050411346 + 14050411347.

It is an arithmetic number, because the mean of its divisors is an integer number (14050411347).

Almost surely, 2^28100822693 is an apocalyptic number.

It is an amenable number.

28100822693 is a deficient number, since it is larger than the sum of its proper divisors (1).

28100822693 is an equidigital number, since it uses as much as digits as its factorization.

28100822693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 28100822693 in words is "twenty-eight billion, one hundred million, eight hundred twenty-two thousand, six hundred ninety-three".