28766148247 has 2 divisors, whose sum is σ = 28766148248. Its totient is φ = 28766148246.

The previous prime is 28766148233. The next prime is 28766148259. The reversal of 28766148247 is 74284166782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28766148247 - 2⁷ = 28766148119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28766148947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14383074123 + 14383074124.

It is an arithmetic number, because the mean of its divisors is an integer number (14383074124).

Almost surely, 2^28766148247 is an apocalyptic number.

28766148247 is a deficient number, since it is larger than the sum of its proper divisors (1).

28766148247 is an equidigital number, since it uses as much as digits as its factorization.

28766148247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7225344, while the sum is 55.

The spelling of 28766148247 in words is "twenty-eight billion, seven hundred sixty-six million, one hundred forty-eight thousand, two hundred forty-seven".