26015872791 has 4 divisors (see below), whose sum is σ = 34687830392. Its totient is φ = 17343915192.

The previous prime is 26015872783. The next prime is 26015872801. The reversal of 26015872791 is 19727851062.

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

It is not a de Polignac number, because 26015872791 - 2³ = 26015872783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26015872791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26015872741) 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 3 ways as a sum of consecutive naturals, for example, 4335978796 + ... + 4335978801.

It is an arithmetic number, because the mean of its divisors is an integer number (8671957598).

Almost surely, 2^26015872791 is an apocalyptic number.

26015872791 is a deficient number, since it is larger than the sum of its proper divisors (8671957601).

26015872791 is an equidigital number, since it uses as much as digits as its factorization.

26015872791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8671957600.

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 26015872791 in words is "twenty-six billion, fifteen million, eight hundred seventy-two thousand, seven hundred ninety-one".