26419189871 has 2 divisors, whose sum is σ = 26419189872. Its totient is φ = 26419189870.

The previous prime is 26419189829. The next prime is 26419189877. The reversal of 26419189871 is 17898191462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26419189871 - 2¹⁸ = 26418927727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26419189877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13209594935 + 13209594936.

It is an arithmetic number, because the mean of its divisors is an integer number (13209594936).

Almost surely, 2^26419189871 is an apocalyptic number.

26419189871 is a deficient number, since it is larger than the sum of its proper divisors (1).

26419189871 is an equidigital number, since it uses as much as digits as its factorization.

26419189871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 56.

The spelling of 26419189871 in words is "twenty-six billion, four hundred nineteen million, one hundred eighty-nine thousand, eight hundred seventy-one".