27722666839720 has 128 divisors (see below), whose sum is σ = 63133253164800. Its totient is φ = 10954990043136.

The previous prime is 27722666839709. The next prime is 27722666839793. The reversal of 27722666839720 is 2793866622772.

It is a super-2 number, since 2×27722666839720² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4723572946 + ... + 4723578814.

It is an arithmetic number, because the mean of its divisors is an integer number (493228540350).

Almost surely, 2^{27722666839720} is an apocalyptic number.

27722666839720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27722666839720 is an abundant number, since it is smaller than the sum of its proper divisors (35410586325080).

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

27722666839720 is a wasteful number, since it uses less digits than its factorization.

27722666839720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547 (or 8543 counting only the distinct ones).

The product of its (nonzero) digits is 256048128, while the sum is 67.

The spelling of 27722666839720 in words is "twenty-seven trillion, seven hundred twenty-two billion, six hundred sixty-six million, eight hundred thirty-nine thousand, seven hundred twenty".