26728554467 has 2 divisors, whose sum is σ = 26728554468. Its totient is φ = 26728554466.

The previous prime is 26728554421. The next prime is 26728554469. The reversal of 26728554467 is 76445582762.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26728554467 - 2²⁰ = 26727505891 is a prime.

Together with 26728554469, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26728554469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13364277233 + 13364277234.

It is an arithmetic number, because the mean of its divisors is an integer number (13364277234).

Almost surely, 2^26728554467 is an apocalyptic number.

26728554467 is a deficient number, since it is larger than the sum of its proper divisors (1).

26728554467 is an equidigital number, since it uses as much as digits as its factorization.

26728554467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22579200, while the sum is 56.

The spelling of 26728554467 in words is "twenty-six billion, seven hundred twenty-eight million, five hundred fifty-four thousand, four hundred sixty-seven".