26381811457 has 8 divisors (see below), whose sum is σ = 26998573184. Its totient is φ = 25765196688.

The previous prime is 26381811451. The next prime is 26381811461. The reversal of 26381811457 is 75411818362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26381811457 - 2⁷ = 26381811329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26381811451) 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 7 ways as a sum of consecutive naturals, for example, 381448 + ... + 445270.

It is an arithmetic number, because the mean of its divisors is an integer number (3374821648).

Almost surely, 2^26381811457 is an apocalyptic number.

It is an amenable number.

26381811457 is a deficient number, since it is larger than the sum of its proper divisors (616761727).

26381811457 is an equidigital number, since it uses as much as digits as its factorization.

26381811457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73479.

The product of its digits is 322560, while the sum is 46.

The spelling of 26381811457 in words is "twenty-six billion, three hundred eighty-one million, eight hundred eleven thousand, four hundred fifty-seven".