26461126231999 has 4 divisors (see below), whose sum is σ = 26466406844920. Its totient is φ = 26455845619080.

The previous prime is 26461126231951. The next prime is 26461126232027. The reversal of 26461126231999 is 99913262116462.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26461126231999 - 2⁹ = 26461126231487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26461126231399) 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 in 3 ways as a sum of consecutive naturals, for example, 2640298944 + ... + 2640308965.

It is an arithmetic number, because the mean of its divisors is an integer number (6616601711230).

Almost surely, 2^{26461126231999} is an apocalyptic number.

26461126231999 is a deficient number, since it is larger than the sum of its proper divisors (5280612921).

26461126231999 is an equidigital number, since it uses as much as digits as its factorization.

26461126231999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280612920.

The product of its digits is 15116544, while the sum is 61.

The spelling of 26461126231999 in words is "twenty-six trillion, four hundred sixty-one billion, one hundred twenty-six million, two hundred thirty-one thousand, nine hundred ninety-nine".