28273920299 has 2 divisors, whose sum is σ = 28273920300. Its totient is φ = 28273920298.

The previous prime is 28273920223. The next prime is 28273920317. The reversal of 28273920299 is 99202937282.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28273920299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28273920299.

It is not a weakly prime, because it can be changed into another prime (28273920599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14136960149 + 14136960150.

It is an arithmetic number, because the mean of its divisors is an integer number (14136960150).

Almost surely, 2^28273920299 is an apocalyptic number.

28273920299 is a deficient number, since it is larger than the sum of its proper divisors (1).

28273920299 is an equidigital number, since it uses as much as digits as its factorization.

28273920299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 28273920299 in words is "twenty-eight billion, two hundred seventy-three million, nine hundred twenty thousand, two hundred ninety-nine".