26541441397 has 4 divisors (see below), whose sum is σ = 26905022860. Its totient is φ = 26177859936.

The previous prime is 26541441383. The next prime is 26541441431. The reversal of 26541441397 is 79314414562.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17689266001 + 8852175396 = 133001^2 + 94086^2 .

It is a cyclic number.

It is not a de Polignac number, because 26541441397 - 2²⁷ = 26407223669 is a prime.

It is a super-3 number, since 3×26541441397³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26541441347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181790622 + ... + 181790767.

It is an arithmetic number, because the mean of its divisors is an integer number (6726255715).

Almost surely, 2^26541441397 is an apocalyptic number.

It is an amenable number.

26541441397 is a deficient number, since it is larger than the sum of its proper divisors (363581463).

26541441397 is an equidigital number, since it uses as much as digits as its factorization.

26541441397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363581462.

The product of its digits is 725760, while the sum is 46.

The spelling of 26541441397 in words is "twenty-six billion, five hundred forty-one million, four hundred forty-one thousand, three hundred ninety-seven".