28277157199 has 2 divisors, whose sum is σ = 28277157200. Its totient is φ = 28277157198.

The previous prime is 28277157197. The next prime is 28277157263. The reversal of 28277157199 is 99175177282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28277157199 - 2¹ = 28277157197 is a prime.

Together with 28277157197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28277157197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14138578599 + 14138578600.

It is an arithmetic number, because the mean of its divisors is an integer number (14138578600).

Almost surely, 2^28277157199 is an apocalyptic number.

28277157199 is a deficient number, since it is larger than the sum of its proper divisors (1).

28277157199 is an equidigital number, since it uses as much as digits as its factorization.

28277157199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4445280, while the sum is 58.

The spelling of 28277157199 in words is "twenty-eight billion, two hundred seventy-seven million, one hundred fifty-seven thousand, one hundred ninety-nine".