26132261149 has 4 divisors (see below), whose sum is σ = 26143183836. Its totient is φ = 26121338464.

The previous prime is 26132261117. The next prime is 26132261189. The reversal of 26132261149 is 94116223162.

It is a happy number.

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 8524828900 + 17607432249 = 92330^2 + 132693^2 .

It is a cyclic number.

It is not a de Polignac number, because 26132261149 - 2⁵ = 26132261117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26132261189) 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 3 ways as a sum of consecutive naturals, for example, 5457754 + ... + 5462539.

It is an arithmetic number, because the mean of its divisors is an integer number (6535795959).

Almost surely, 2^26132261149 is an apocalyptic number.

It is an amenable number.

26132261149 is a deficient number, since it is larger than the sum of its proper divisors (10922687).

26132261149 is a wasteful number, since it uses less digits than its factorization.

26132261149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10922686.

The product of its digits is 31104, while the sum is 37.

The spelling of 26132261149 in words is "twenty-six billion, one hundred thirty-two million, two hundred sixty-one thousand, one hundred forty-nine".