26842108197 has 8 divisors (see below), whose sum is σ = 37894741056. Its totient is φ = 16842107072.

The previous prime is 26842108109. The next prime is 26842108207. The reversal of 26842108197 is 79180124862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26842108197 - 2²⁰ = 26841059621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26842108297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263157873 + ... + 263157974.

It is an arithmetic number, because the mean of its divisors is an integer number (4736842632).

Almost surely, 2^26842108197 is an apocalyptic number.

It is an amenable number.

26842108197 is a deficient number, since it is larger than the sum of its proper divisors (11052632859).

26842108197 is a wasteful number, since it uses less digits than its factorization.

26842108197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526315867.

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 26842108197 in words is "twenty-six billion, eight hundred forty-two million, one hundred eight thousand, one hundred ninety-seven".