26894442077 has 2 divisors, whose sum is σ = 26894442078. Its totient is φ = 26894442076.

The previous prime is 26894442067. The next prime is 26894442151. The reversal of 26894442077 is 77024449862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26667216601 + 227225476 = 163301^2 + 15074^2 .

It is a cyclic number.

It is not a de Polignac number, because 26894442077 - 2¹⁴ = 26894425693 is a prime.

It is a super-2 number, since 2×26894442077² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26894442067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13447221038 + 13447221039.

It is an arithmetic number, because the mean of its divisors is an integer number (13447221039).

Almost surely, 2^26894442077 is an apocalyptic number.

It is an amenable number.

26894442077 is a deficient number, since it is larger than the sum of its proper divisors (1).

26894442077 is an equidigital number, since it uses as much as digits as its factorization.

26894442077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 26894442077 in words is "twenty-six billion, eight hundred ninety-four million, four hundred forty-two thousand, seventy-seven".