26745787886687 has 2 divisors, whose sum is σ = 26745787886688. Its totient is φ = 26745787886686.

The previous prime is 26745787886683. The next prime is 26745787886731. The reversal of 26745787886687 is 78668878754762.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26745787886687 - 2² = 26745787886683 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26745787886683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13372893943343 + 13372893943344.

It is an arithmetic number, because the mean of its divisors is an integer number (13372893943344).

Almost surely, 2^{26745787886687} is an apocalyptic number.

26745787886687 is a deficient number, since it is larger than the sum of its proper divisors (1).

26745787886687 is an equidigital number, since it uses as much as digits as its factorization.

26745787886687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84970045440, while the sum is 89.

The spelling of 26745787886687 in words is "twenty-six trillion, seven hundred forty-five billion, seven hundred eighty-seven million, eight hundred eighty-six thousand, six hundred eighty-seven".