27726866146 has 16 divisors (see below), whose sum is σ = 47567621376. Its totient is φ = 11873979936.

The previous prime is 27726866143. The next prime is 27726866173. The reversal of 27726866146 is 64166862772.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27726866143) 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, 727651 + ... + 764806.

It is an arithmetic number, because the mean of its divisors is an integer number (2972976336).

Almost surely, 2^27726866146 is an apocalyptic number.

27726866146 is a deficient number, since it is larger than the sum of its proper divisors (19840755230).

27726866146 is a wasteful number, since it uses less digits than its factorization.

27726866146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493793.

The product of its digits is 8128512, while the sum is 55.

The spelling of 27726866146 in words is "twenty-seven billion, seven hundred twenty-six million, eight hundred sixty-six thousand, one hundred forty-six".