26978947112 has 32 divisors (see below), whose sum is σ = 54761978880. Its totient is φ = 12386619840.

The previous prime is 26978947111. The next prime is 26978947133. The reversal of 26978947112 is 21174987962.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (26978947111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659228 + ... + 698955.

It is an arithmetic number, because the mean of its divisors is an integer number (1711311840).

Almost surely, 2^26978947112 is an apocalyptic number.

It is an amenable number.

26978947112 is an abundant number, since it is smaller than the sum of its proper divisors (27783031768).

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

26978947112 is a wasteful number, since it uses less digits than its factorization.

26978947112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358393 (or 1358389 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 56.

The spelling of 26978947112 in words is "twenty-six billion, nine hundred seventy-eight million, nine hundred forty-seven thousand, one hundred twelve".