26242543231 has 2 divisors, whose sum is σ = 26242543232. Its totient is φ = 26242543230.

The previous prime is 26242543211. The next prime is 26242543241. The reversal of 26242543231 is 13234524262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26242543231 - 2⁹ = 26242542719 is a prime.

It is a super-2 number, since 2×26242543231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26242543211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13121271615 + 13121271616.

It is an arithmetic number, because the mean of its divisors is an integer number (13121271616).

Almost surely, 2^26242543231 is an apocalyptic number.

26242543231 is a deficient number, since it is larger than the sum of its proper divisors (1).

26242543231 is an equidigital number, since it uses as much as digits as its factorization.

26242543231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 34.

The spelling of 26242543231 in words is "twenty-six billion, two hundred forty-two million, five hundred forty-three thousand, two hundred thirty-one".