26900777929 has 2 divisors, whose sum is σ = 26900777930. Its totient is φ = 26900777928.

The previous prime is 26900777821. The next prime is 26900777947. The reversal of 26900777929 is 92977700962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21586367929 + 5314410000 = 146923^2 + 72900^2 .

It is a cyclic number.

It is not a de Polignac number, because 26900777929 - 2⁹ = 26900777417 is a prime.

It is not a weakly prime, because it can be changed into another prime (26900778929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13450388964 + 13450388965.

It is an arithmetic number, because the mean of its divisors is an integer number (13450388965).

Almost surely, 2^26900777929 is an apocalyptic number.

It is an amenable number.

26900777929 is a deficient number, since it is larger than the sum of its proper divisors (1).

26900777929 is an equidigital number, since it uses as much as digits as its factorization.

26900777929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6001128, while the sum is 58.

The spelling of 26900777929 in words is "twenty-six billion, nine hundred million, seven hundred seventy-seven thousand, nine hundred twenty-nine".