26859081071 has 4 divisors (see below), whose sum is σ = 27135978912. Its totient is φ = 26582183232.

The previous prime is 26859081049. The next prime is 26859081083. The reversal of 26859081071 is 17018095862.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26859081071 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 (26859081001) 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, 138448775 + ... + 138448968.

It is an arithmetic number, because the mean of its divisors is an integer number (6783994728).

Almost surely, 2^26859081071 is an apocalyptic number.

26859081071 is a deficient number, since it is larger than the sum of its proper divisors (276897841).

26859081071 is an equidigital number, since it uses as much as digits as its factorization.

26859081071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276897840.

The product of its (nonzero) digits is 241920, while the sum is 47.

The spelling of 26859081071 in words is "twenty-six billion, eight hundred fifty-nine million, eighty-one thousand, seventy-one".