18069001677 has 6 divisors (see below), whose sum is σ = 26099669102. Its totient is φ = 12046001112.

The previous prime is 18069001661. The next prime is 18069001777. The reversal of 18069001677 is 77610096081.

It can be written as a sum of positive squares in only one way, i.e., 10375255881 + 7693745796 = 101859^2 + 87714^2 .

It is not a de Polignac number, because 18069001677 - 2⁴ = 18069001661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18069001607) 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, 1003833418 + ... + 1003833435.

Almost surely, 2^18069001677 is an apocalyptic number.

It is an amenable number.

18069001677 is a deficient number, since it is larger than the sum of its proper divisors (8030667425).

18069001677 is a wasteful number, since it uses less digits than its factorization.

18069001677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007666859 (or 2007666856 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 18069001677 in words is "eighteen billion, sixty-nine million, one thousand, six hundred seventy-seven".