18345033485 has 4 divisors (see below), whose sum is σ = 22014040188. Its totient is φ = 14676026784.

The previous prime is 18345033457. The next prime is 18345033493. The reversal of 18345033485 is 58433054381.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9910998916 + 8434034569 = 99554^2 + 91837^2 .

It is a cyclic number.

It is not a de Polignac number, because 18345033485 - 2¹² = 18345029389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1834503344 + ... + 1834503353.

It is an arithmetic number, because the mean of its divisors is an integer number (5503510047).

Almost surely, 2^18345033485 is an apocalyptic number.

It is an amenable number.

18345033485 is a deficient number, since it is larger than the sum of its proper divisors (3669006703).

18345033485 is an equidigital number, since it uses as much as digits as its factorization.

18345033485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669006702.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 18345033485 in words is "eighteen billion, three hundred forty-five million, thirty-three thousand, four hundred eighty-five".