26420679069 has 4 divisors (see below), whose sum is σ = 35227572096. Its totient is φ = 17613786044.

The previous prime is 26420679023. The next prime is 26420679073. The reversal of 26420679069 is 96097602462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26420679069 - 2⁷ = 26420678941 is a prime.

It is a super-4 number, since 4×26420679069⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26420679079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4403446509 + ... + 4403446514.

It is an arithmetic number, because the mean of its divisors is an integer number (8806893024).

Almost surely, 2^26420679069 is an apocalyptic number.

It is an amenable number.

26420679069 is a deficient number, since it is larger than the sum of its proper divisors (8806893027).

26420679069 is an equidigital number, since it uses as much as digits as its factorization.

26420679069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8806893026.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 26420679069 in words is "twenty-six billion, four hundred twenty million, six hundred seventy-nine thousand, sixty-nine".