26871871012 has 24 divisors (see below), whose sum is σ = 53789085504. Its totient is φ = 11506799712.

The previous prime is 26871871009. The next prime is 26871871021. The reversal of 26871871012 is 21017817862.

It is a self number, because there is not a number n which added to its sum of digits gives 26871871012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371023 + ... + 437494.

It is an arithmetic number, because the mean of its divisors is an integer number (2241211896).

Almost surely, 2^26871871012 is an apocalyptic number.

It is an amenable number.

26871871012 is an abundant number, since it is smaller than the sum of its proper divisors (26917214492).

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

26871871012 is a wasteful number, since it uses less digits than its factorization.

26871871012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809715 (or 809713 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 43.

The spelling of 26871871012 in words is "twenty-six billion, eight hundred seventy-one million, eight hundred seventy-one thousand, twelve".