26340757777 has 2 divisors, whose sum is σ = 26340757778. Its totient is φ = 26340757776.

The previous prime is 26340757717. The next prime is 26340757799. The reversal of 26340757777 is 77775704362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17780622336 + 8560135441 = 133344^2 + 92521^2 .

It is a cyclic number.

It is not a de Polignac number, because 26340757777 - 2³¹ = 24193274129 is a prime.

It is not a weakly prime, because it can be changed into another prime (26340757717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13170378888 + 13170378889.

It is an arithmetic number, because the mean of its divisors is an integer number (13170378889).

Almost surely, 2^26340757777 is an apocalyptic number.

It is an amenable number.

26340757777 is a deficient number, since it is larger than the sum of its proper divisors (1).

26340757777 is an equidigital number, since it uses as much as digits as its factorization.

26340757777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12101040, while the sum is 55.

The spelling of 26340757777 in words is "twenty-six billion, three hundred forty million, seven hundred fifty-seven thousand, seven hundred seventy-seven".