18093802546 has 4 divisors (see below), whose sum is σ = 27140703822. Its totient is φ = 9046901272.

The previous prime is 18093802483. The next prime is 18093802561. The reversal of 18093802546 is 64520839081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17731851921 + 361950625 = 133161^2 + 19025^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18093802496 and 18093802505.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4523450635 + ... + 4523450638.

Almost surely, 2^18093802546 is an apocalyptic number.

18093802546 is a deficient number, since it is larger than the sum of its proper divisors (9046901276).

18093802546 is an equidigital number, since it uses as much as digits as its factorization.

18093802546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9046901275.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 18093802546 in words is "eighteen billion, ninety-three million, eight hundred two thousand, five hundred forty-six".