18035896645 has 8 divisors (see below), whose sum is σ = 23307928056. Its totient is φ = 13318815936.

The previous prime is 18035896577. The next prime is 18035896673. The reversal of 18035896645 is 54669853081.

It can be written as a sum of positive squares in 4 ways, for example, as 1326197889 + 16709698756 = 36417^2 + 129266^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18035896645 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138737602 + ... + 138737731.

It is an arithmetic number, because the mean of its divisors is an integer number (2913491007).

Almost surely, 2^18035896645 is an apocalyptic number.

It is an amenable number.

18035896645 is a deficient number, since it is larger than the sum of its proper divisors (5272031411).

18035896645 is a wasteful number, since it uses less digits than its factorization.

18035896645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277475351.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 18035896645 in words is "eighteen billion, thirty-five million, eight hundred ninety-six thousand, six hundred forty-five".