27722679723 has 12 divisors (see below), whose sum is σ = 41784908880. Its totient is φ = 17678230416.

The previous prime is 27722679709. The next prime is 27722679727. The reversal of 27722679723 is 32797622772.

It is a happy number.

27722679723 is a `hidden beast` number, since 277 + 2 + 267 + 97 + 23 = 666.

It is not a de Polignac number, because 27722679723 - 2⁴ = 27722679707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27722679723.

It is not an unprimeable number, because it can be changed into a prime (27722679727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66962788 + ... + 66963201.

It is an arithmetic number, because the mean of its divisors is an integer number (3482075740).

Almost surely, 2^27722679723 is an apocalyptic number.

27722679723 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

27722679723 is a deficient number, since it is larger than the sum of its proper divisors (14062229157).

27722679723 is a wasteful number, since it uses less digits than its factorization.

27722679723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133926018 (or 133926015 counting only the distinct ones).

The product of its digits is 6223392, while the sum is 54.

The spelling of 27722679723 in words is "twenty-seven billion, seven hundred twenty-two million, six hundred seventy-nine thousand, seven hundred twenty-three".