26740685886 has 16 divisors (see below), whose sum is σ = 53490032400. Its totient is φ = 8912118528.

The previous prime is 26740685869. The next prime is 26740685903. The reversal of 26740685886 is 68858604762.

It is an interprime number because it is at equal distance from previous prime (26740685869) and next prime (26740685903).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320371 + ... + 395118.

It is an arithmetic number, because the mean of its divisors is an integer number (3343127025).

Almost surely, 2^26740685886 is an apocalyptic number.

26740685886 is an abundant number, since it is smaller than the sum of its proper divisors (26749346514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26740685886 is a wasteful number, since it uses less digits than its factorization.

26740685886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721723.

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 26740685886 in words is "twenty-six billion, seven hundred forty million, six hundred eighty-five thousand, eight hundred eighty-six".