28613890229 has 2 divisors, whose sum is σ = 28613890230. Its totient is φ = 28613890228.

The previous prime is 28613890159. The next prime is 28613890231. The reversal of 28613890229 is 92209831682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28530588100 + 83302129 = 168910^2 + 9127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28613890229 is a prime.

Together with 28613890231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28613890429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14306945114 + 14306945115.

It is an arithmetic number, because the mean of its divisors is an integer number (14306945115).

Almost surely, 2^28613890229 is an apocalyptic number.

It is an amenable number.

28613890229 is a deficient number, since it is larger than the sum of its proper divisors (1).

28613890229 is an equidigital number, since it uses as much as digits as its factorization.

28613890229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 28613890229 in words is "twenty-eight billion, six hundred thirteen million, eight hundred ninety thousand, two hundred twenty-nine".