26538798847 has 4 divisors (see below), whose sum is σ = 28951416936. Its totient is φ = 24126180760.

The previous prime is 26538798841. The next prime is 26538798863. The reversal of 26538798847 is 74889783562.

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

It is not a de Polignac number, because 26538798847 - 2¹¹ = 26538796799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26538798841) 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, 1206309028 + ... + 1206309049.

It is an arithmetic number, because the mean of its divisors is an integer number (7237854234).

Almost surely, 2^26538798847 is an apocalyptic number.

26538798847 is a deficient number, since it is larger than the sum of its proper divisors (2412618089).

26538798847 is a wasteful number, since it uses less digits than its factorization.

26538798847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412618088.

The product of its digits is 162570240, while the sum is 67.

The spelling of 26538798847 in words is "twenty-six billion, five hundred thirty-eight million, seven hundred ninety-eight thousand, eight hundred forty-seven".