26648242887377 has 2 divisors, whose sum is σ = 26648242887378. Its totient is φ = 26648242887376.

The previous prime is 26648242887359. The next prime is 26648242887493. The reversal of 26648242887377 is 77378824284662.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24836308828816 + 1811934058561 = 4983604^2 + 1346081^2 .

It is a cyclic number.

It is not a de Polignac number, because 26648242887377 - 2¹² = 26648242883281 is a prime.

It is not a weakly prime, because it can be changed into another prime (26648242880377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13324121443688 + 13324121443689.

It is an arithmetic number, because the mean of its divisors is an integer number (13324121443689).

Almost surely, 2^{26648242887377} is an apocalyptic number.

It is an amenable number.

26648242887377 is a deficient number, since it is larger than the sum of its proper divisors (1).

26648242887377 is an equidigital number, since it uses as much as digits as its factorization.

26648242887377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2427715584, while the sum is 74.

The spelling of 26648242887377 in words is "twenty-six trillion, six hundred forty-eight billion, two hundred forty-two million, eight hundred eighty-seven thousand, three hundred seventy-seven".