18094047669 has 6 divisors (see below), whose sum is σ = 26135846646. Its totient is φ = 12062698440.

The previous prime is 18094047661. The next prime is 18094047679. The reversal of 18094047669 is 96674049081.

18094047669 is a `hidden beast` number, since 1 + 80 + 94 + 0 + 476 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15615501444 + 2478546225 = 124962^2 + 49785^2 .

It is not a de Polignac number, because 18094047669 - 2³ = 18094047661 is a prime.

It is a super-2 number, since 2×18094047669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18094047661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1005224862 + ... + 1005224879.

It is an arithmetic number, because the mean of its divisors is an integer number (4355974441).

Almost surely, 2^18094047669 is an apocalyptic number.

It is an amenable number.

18094047669 is a deficient number, since it is larger than the sum of its proper divisors (8041798977).

18094047669 is a wasteful number, since it uses less digits than its factorization.

18094047669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010449747 (or 2010449744 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 18094047669 in words is "eighteen billion, ninety-four million, forty-seven thousand, six hundred sixty-nine".