26995128812 has 24 divisors (see below), whose sum is σ = 48618028704. Its totient is φ = 13105763712.

The previous prime is 26995128779. The next prime is 26995128829. The reversal of 26995128812 is 21882159962.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115193 + ... + 259344.

It is an arithmetic number, because the mean of its divisors is an integer number (2025751196).

Almost surely, 2^26995128812 is an apocalyptic number.

It is an amenable number.

26995128812 is a deficient number, since it is larger than the sum of its proper divisors (21622899892).

26995128812 is a wasteful number, since it uses less digits than its factorization.

26995128812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375065 (or 375063 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 53.

The spelling of 26995128812 in words is "twenty-six billion, nine hundred ninety-five million, one hundred twenty-eight thousand, eight hundred twelve".