26131406266 has 16 divisors (see below), whose sum is σ = 44844324480. Its totient is φ = 11187267120.

The previous prime is 26131406207. The next prime is 26131406267. The reversal of 26131406266 is 66260413162.

It is not an unprimeable number, because it can be changed into a prime (26131406267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 978606 + ... + 1004953.

It is an arithmetic number, because the mean of its divisors is an integer number (2802770280).

Almost surely, 2^26131406266 is an apocalyptic number.

26131406266 is a deficient number, since it is larger than the sum of its proper divisors (18712918214).

26131406266 is a wasteful number, since it uses less digits than its factorization.

26131406266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984509.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 26131406266 in words is "twenty-six billion, one hundred thirty-one million, four hundred six thousand, two hundred sixty-six".