26438530219 has 2 divisors, whose sum is σ = 26438530220. Its totient is φ = 26438530218.

The previous prime is 26438530133. The next prime is 26438530273. The reversal of 26438530219 is 91203583462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26438530219 - 2²⁷ = 26304312491 is a prime.

It is a super-2 number, since 2×26438530219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26438530319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13219265109 + 13219265110.

It is an arithmetic number, because the mean of its divisors is an integer number (13219265110).

Almost surely, 2^26438530219 is an apocalyptic number.

26438530219 is a deficient number, since it is larger than the sum of its proper divisors (1).

26438530219 is an equidigital number, since it uses as much as digits as its factorization.

26438530219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 26438530219 in words is "twenty-six billion, four hundred thirty-eight million, five hundred thirty thousand, two hundred nineteen".