26812089447 has 32 divisors (see below), whose sum is σ = 42025643520. Its totient is φ = 14990382720.

The previous prime is 26812089439. The next prime is 26812089449. The reversal of 26812089447 is 74498021862.

It is not a de Polignac number, because 26812089447 - 2³ = 26812089439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26812089447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26812089449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 697278 + ... + 734724.

It is an arithmetic number, because the mean of its divisors is an integer number (1313301360).

Almost surely, 2^26812089447 is an apocalyptic number.

26812089447 is a deficient number, since it is larger than the sum of its proper divisors (15213554073).

26812089447 is a wasteful number, since it uses less digits than its factorization.

26812089447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39143.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 26812089447 in words is "twenty-six billion, eight hundred twelve million, eighty-nine thousand, four hundred forty-seven".