28455622369 has 2 divisors, whose sum is σ = 28455622370. Its totient is φ = 28455622368.

The previous prime is 28455622267. The next prime is 28455622373. The reversal of 28455622369 is 96322655482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15158534400 + 13297087969 = 123120^2 + 115313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28455622369 is a prime.

It is a super-2 number, since 2×28455622369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28455629369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14227811184 + 14227811185.

It is an arithmetic number, because the mean of its divisors is an integer number (14227811185).

Almost surely, 2^28455622369 is an apocalyptic number.

It is an amenable number.

28455622369 is a deficient number, since it is larger than the sum of its proper divisors (1).

28455622369 is an equidigital number, since it uses as much as digits as its factorization.

28455622369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 52.

The spelling of 28455622369 in words is "twenty-eight billion, four hundred fifty-five million, six hundred twenty-two thousand, three hundred sixty-nine".