18127628266 has 32 divisors (see below), whose sum is σ = 30238920000. Its totient is φ = 8080126080.

The previous prime is 18127628261. The next prime is 18127628287. The reversal of 18127628266 is 66282672181.

It is a super-2 number, since 2×18127628266² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18127628261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3552585 + ... + 3557683.

It is an arithmetic number, because the mean of its divisors is an integer number (944966250).

Almost surely, 2^18127628266 is an apocalyptic number.

18127628266 is a deficient number, since it is larger than the sum of its proper divisors (12111291734).

18127628266 is a wasteful number, since it uses less digits than its factorization.

18127628266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214.

The product of its digits is 774144, while the sum is 49.

The spelling of 18127628266 in words is "eighteen billion, one hundred twenty-seven million, six hundred twenty-eight thousand, two hundred sixty-six".