26342638772 has 12 divisors (see below), whose sum is σ = 47080461120. Its totient is φ = 12891078456.

The previous prime is 26342638769. The next prime is 26342638837. The reversal of 26342638772 is 27783624362.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26342638772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70060022 + ... + 70060397.

It is an arithmetic number, because the mean of its divisors is an integer number (3923371760).

Almost surely, 2^26342638772 is an apocalyptic number.

It is an amenable number.

26342638772 is a deficient number, since it is larger than the sum of its proper divisors (20737822348).

26342638772 is a wasteful number, since it uses less digits than its factorization.

26342638772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140120470 (or 140120468 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 50.

The spelling of 26342638772 in words is "twenty-six billion, three hundred forty-two million, six hundred thirty-eight thousand, seven hundred seventy-two".