26773566487 has 2 divisors, whose sum is σ = 26773566488. Its totient is φ = 26773566486.

The previous prime is 26773566427. The next prime is 26773566493. The reversal of 26773566487 is 78466537762.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26773566487 - 2²⁷ = 26639348759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26773566427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13386783243 + 13386783244.

It is an arithmetic number, because the mean of its divisors is an integer number (13386783244).

Almost surely, 2^26773566487 is an apocalyptic number.

26773566487 is a deficient number, since it is larger than the sum of its proper divisors (1).

26773566487 is an equidigital number, since it uses as much as digits as its factorization.

26773566487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71124480, while the sum is 61.

The spelling of 26773566487 in words is "twenty-six billion, seven hundred seventy-three million, five hundred sixty-six thousand, four hundred eighty-seven".