26457443715431 has 4 divisors (see below), whose sum is σ = 27172509761832. Its totient is φ = 25742377669032.

The previous prime is 26457443715421. The next prime is 26457443715473. The reversal of 26457443715431 is 13451734475462.

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 26457443715431 - 2²⁶ = 26457376606567 is a prime.

It is a super-2 number, since 2×26457443715431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26457443715421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357533023145 + ... + 357533023218.

It is an arithmetic number, because the mean of its divisors is an integer number (6793127440458).

Almost surely, 2^{26457443715431} is an apocalyptic number.

26457443715431 is a deficient number, since it is larger than the sum of its proper divisors (715066046401).

26457443715431 is an equidigital number, since it uses as much as digits as its factorization.

26457443715431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715066046400.

The product of its digits is 33868800, while the sum is 56.

The spelling of 26457443715431 in words is "twenty-six trillion, four hundred fifty-seven billion, four hundred forty-three million, seven hundred fifteen thousand, four hundred thirty-one".