26776226535257 has 16 divisors (see below), whose sum is σ = 28526065935360. Its totient is φ = 25060464569232.

The previous prime is 26776226535251. The next prime is 26776226535259. The reversal of 26776226535257 is 75253562267762.

It is a cyclic number.

It is not a de Polignac number, because 26776226535257 - 2¹⁶ = 26776226469721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26776226535193 and 26776226535202.

It is not an unprimeable number, because it can be changed into a prime (26776226535251) 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 15 ways as a sum of consecutive naturals, for example, 48180188 + ... + 48732770.

It is an arithmetic number, because the mean of its divisors is an integer number (1782879120960).

Almost surely, 2^{26776226535257} is an apocalyptic number.

It is an amenable number.

26776226535257 is a deficient number, since it is larger than the sum of its proper divisors (1749839400103).

26776226535257 is a wasteful number, since it uses less digits than its factorization.

26776226535257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583412.

The product of its digits is 444528000, while the sum is 65.

The spelling of 26776226535257 in words is "twenty-six trillion, seven hundred seventy-six billion, two hundred twenty-six million, five hundred thirty-five thousand, two hundred fifty-seven".