26209102051 has 4 divisors (see below), whose sum is σ = 28591747704. Its totient is φ = 23826456400.

The previous prime is 26209102039. The next prime is 26209102061. The reversal of 26209102051 is 15020190262.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26209102051 - 2³³ = 17619167459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26209102061) 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, 1191322810 + ... + 1191322831.

It is an arithmetic number, because the mean of its divisors is an integer number (7147936926).

Almost surely, 2^26209102051 is an apocalyptic number.

26209102051 is a deficient number, since it is larger than the sum of its proper divisors (2382645653).

26209102051 is a wasteful number, since it uses less digits than its factorization.

26209102051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382645652.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 26209102051 in words is "twenty-six billion, two hundred nine million, one hundred two thousand, fifty-one".