26216831812 has 24 divisors (see below), whose sum is σ = 48253024512. Its totient is φ = 12446210400.

The previous prime is 26216831789. The next prime is 26216831831. The reversal of 26216831812 is 21813861262.

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, 1988014 + ... + 2001157.

It is an arithmetic number, because the mean of its divisors is an integer number (2010542688).

Almost surely, 2^26216831812 is an apocalyptic number.

It is an amenable number.

26216831812 is a deficient number, since it is larger than the sum of its proper divisors (22036192700).

26216831812 is a wasteful number, since it uses less digits than its factorization.

26216831812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989259 (or 3989257 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The spelling of 26216831812 in words is "twenty-six billion, two hundred sixteen million, eight hundred thirty-one thousand, eight hundred twelve".