27792400689 has 12 divisors (see below), whose sum is σ = 42257451600. Its totient is φ = 17553095064.

The previous prime is 27792400667. The next prime is 27792400697. The reversal of 27792400689 is 98600429772.

27792400689 is a `hidden beast` number, since 2 + 77 + 92 + 400 + 6 + 89 = 666.

It is not a de Polignac number, because 27792400689 - 2⁷ = 27792400561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27792400609) 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, 81264159 + ... + 81264500.

It is an arithmetic number, because the mean of its divisors is an integer number (3521454300).

Almost surely, 2^27792400689 is an apocalyptic number.

It is an amenable number.

27792400689 is a deficient number, since it is larger than the sum of its proper divisors (14465050911).

27792400689 is a wasteful number, since it uses less digits than its factorization.

27792400689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162528684 (or 162528681 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 27792400689 in words is "twenty-seven billion, seven hundred ninety-two million, four hundred thousand, six hundred eighty-nine".