28510296769 has 2 divisors, whose sum is σ = 28510296770. Its totient is φ = 28510296768.

The previous prime is 28510296713. The next prime is 28510296781. The reversal of 28510296769 is 96769201582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27851604544 + 658692225 = 166888^2 + 25665^2 .

It is a cyclic number.

It is not a de Polignac number, because 28510296769 - 2⁹ = 28510296257 is a prime.

It is a super-2 number, since 2×28510296769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28510293769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14255148384 + 14255148385.

It is an arithmetic number, because the mean of its divisors is an integer number (14255148385).

Almost surely, 2^28510296769 is an apocalyptic number.

It is an amenable number.

28510296769 is a deficient number, since it is larger than the sum of its proper divisors (1).

28510296769 is an equidigital number, since it uses as much as digits as its factorization.

28510296769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 28510296769 in words is "twenty-eight billion, five hundred ten million, two hundred ninety-six thousand, seven hundred sixty-nine".