26871870863 has 4 divisors (see below), whose sum is σ = 26873770728. Its totient is φ = 26869971000.

The previous prime is 26871870859. The next prime is 26871870869. The reversal of 26871870863 is 36807817862.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 26871870863 - 2² = 26871870859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26871870799 and 26871870808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26871870869) 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, 928556 + ... + 957057.

It is an arithmetic number, because the mean of its divisors is an integer number (6718442682).

Almost surely, 2^26871870863 is an apocalyptic number.

26871870863 is a deficient number, since it is larger than the sum of its proper divisors (1899865).

26871870863 is a wasteful number, since it uses less digits than its factorization.

26871870863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899864.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 26871870863 in words is "twenty-six billion, eight hundred seventy-one million, eight hundred seventy thousand, eight hundred sixty-three".