26251886166481 has 8 divisors (see below), whose sum is σ = 26393034691584. Its totient is φ = 26110776226080.

The previous prime is 26251886166419. The next prime is 26251886166487. The reversal of 26251886166481 is 18466168815262.

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 26251886166481 - 2²⁵ = 26251852612049 is a prime.

It is a super-2 number, since 2×26251886166481² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26251886166487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8281260 + ... + 11003773.

It is an arithmetic number, because the mean of its divisors is an integer number (3299129336448).

Almost surely, 2^{26251886166481} is an apocalyptic number.

It is an amenable number.

26251886166481 is a deficient number, since it is larger than the sum of its proper divisors (141148525103).

26251886166481 is a wasteful number, since it uses less digits than its factorization.

26251886166481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19292351.

The product of its digits is 53084160, while the sum is 64.

The spelling of 26251886166481 in words is "twenty-six trillion, two hundred fifty-one billion, eight hundred eighty-six million, one hundred sixty-six thousand, four hundred eighty-one".