26671913672687 has 2 divisors, whose sum is σ = 26671913672688. Its totient is φ = 26671913672686.

The previous prime is 26671913672671. The next prime is 26671913672693. The reversal of 26671913672687 is 78627631917662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26671913672687 - 2⁴ = 26671913672671 is a prime.

It is a super-2 number, since 2×26671913672687² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26671913672687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26671913672617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13335956836343 + 13335956836344.

It is an arithmetic number, because the mean of its divisors is an integer number (13335956836344).

Almost surely, 2^{26671913672687} is an apocalyptic number.

26671913672687 is a deficient number, since it is larger than the sum of its proper divisors (1).

26671913672687 is an equidigital number, since it uses as much as digits as its factorization.

26671913672687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384072192, while the sum is 71.

The spelling of 26671913672687 in words is "twenty-six trillion, six hundred seventy-one billion, nine hundred thirteen million, six hundred seventy-two thousand, six hundred eighty-seven".