26894550077 has 2 divisors, whose sum is σ = 26894550078. Its totient is φ = 26894550076.

The previous prime is 26894550037. The next prime is 26894550113. The reversal of 26894550077 is 77005549862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24881592121 + 2012957956 = 157739^2 + 44866^2 .

It is a cyclic number.

It is not a de Polignac number, because 26894550077 - 2¹⁰ = 26894549053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26894550037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13447275038 + 13447275039.

It is an arithmetic number, because the mean of its divisors is an integer number (13447275039).

Almost surely, 2^26894550077 is an apocalyptic number.

It is an amenable number.

26894550077 is a deficient number, since it is larger than the sum of its proper divisors (1).

26894550077 is an equidigital number, since it uses as much as digits as its factorization.

26894550077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 26894550077 in words is "twenty-six billion, eight hundred ninety-four million, five hundred fifty thousand, seventy-seven".