26223196638 has 32 divisors (see below), whose sum is σ = 53689743360. Its totient is φ = 8534725920.

The previous prime is 26223196619. The next prime is 26223196661. The reversal of 26223196638 is 83669132262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8283 + ... + 229161.

It is an arithmetic number, because the mean of its divisors is an integer number (1677804480).

Almost surely, 2^26223196638 is an apocalyptic number.

26223196638 is an abundant number, since it is smaller than the sum of its proper divisors (27466546722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26223196638 is a wasteful number, since it uses less digits than its factorization.

26223196638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221352.

The product of its digits is 1119744, while the sum is 48.

The spelling of 26223196638 in words is "twenty-six billion, two hundred twenty-three million, one hundred ninety-six thousand, six hundred thirty-eight".