26806628469 has 8 divisors (see below), whose sum is σ = 36194604160. Its totient is φ = 17644869216.

The previous prime is 26806628467. The next prime is 26806628473. The reversal of 26806628469 is 96482660862.

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

It is not a de Polignac number, because 26806628469 - 2¹ = 26806628467 is a prime.

It is a super-2 number, since 2×26806628469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26806628461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56553832 + ... + 56554305.

It is an arithmetic number, because the mean of its divisors is an integer number (4524325520).

Almost surely, 2^26806628469 is an apocalyptic number.

It is an amenable number.

26806628469 is a deficient number, since it is larger than the sum of its proper divisors (9387975691).

26806628469 is a wasteful number, since it uses less digits than its factorization.

26806628469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113108219.

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 26806628469 in words is "twenty-six billion, eight hundred six million, six hundred twenty-eight thousand, four hundred sixty-nine".