27266741778 has 16 divisors (see below), whose sum is σ = 55562417856. Its totient is φ = 8917424880.

The previous prime is 27266741741. The next prime is 27266741791. The reversal of 27266741778 is 87714766272.

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, 42871918 + ... + 42872553.

It is an arithmetic number, because the mean of its divisors is an integer number (3472651116).

Almost surely, 2^27266741778 is an apocalyptic number.

27266741778 is an abundant number, since it is smaller than the sum of its proper divisors (28295676078).

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

27266741778 is a wasteful number, since it uses less digits than its factorization.

27266741778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85744529.

The product of its digits is 11063808, while the sum is 57.

The spelling of 27266741778 in words is "twenty-seven billion, two hundred sixty-six million, seven hundred forty-one thousand, seven hundred seventy-eight".