28762216279 has 2 divisors, whose sum is σ = 28762216280. Its totient is φ = 28762216278.

The previous prime is 28762216267. The next prime is 28762216349. The reversal of 28762216279 is 97261226782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28762216279 - 2⁵ = 28762216247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28762216579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14381108139 + 14381108140.

It is an arithmetic number, because the mean of its divisors is an integer number (14381108140).

Almost surely, 2^28762216279 is an apocalyptic number.

28762216279 is a deficient number, since it is larger than the sum of its proper divisors (1).

28762216279 is an equidigital number, since it uses as much as digits as its factorization.

28762216279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 52.

The spelling of 28762216279 in words is "twenty-eight billion, seven hundred sixty-two million, two hundred sixteen thousand, two hundred seventy-nine".