28195267267 has 2 divisors, whose sum is σ = 28195267268. Its totient is φ = 28195267266.

The previous prime is 28195267231. The next prime is 28195267271. The reversal of 28195267267 is 76276259182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28195267267 - 2²⁷ = 28061049539 is a prime.

It is not a weakly prime, because it can be changed into another prime (28195367267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14097633633 + 14097633634.

It is an arithmetic number, because the mean of its divisors is an integer number (14097633634).

Almost surely, 2^28195267267 is an apocalyptic number.

28195267267 is a deficient number, since it is larger than the sum of its proper divisors (1).

28195267267 is an equidigital number, since it uses as much as digits as its factorization.

28195267267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 55.

The spelling of 28195267267 in words is "twenty-eight billion, one hundred ninety-five million, two hundred sixty-seven thousand, two hundred sixty-seven".