1853338516885 has 8 divisors (see below), whose sum is σ = 2225197450656. Its totient is φ = 1481876659920.

The previous prime is 1853338516879. The next prime is 1853338516889. The reversal of 1853338516885 is 5886158333581.

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

It is a de Polignac number, because none of the positive numbers 2^k-1853338516885 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 (1853338516889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99258931 + ... + 99277600.

It is an arithmetic number, because the mean of its divisors is an integer number (278149681332).

Almost surely, 2^{1853338516885} is an apocalyptic number.

It is an amenable number.

1853338516885 is a deficient number, since it is larger than the sum of its proper divisors (371858933771).

1853338516885 is a wasteful number, since it uses less digits than its factorization.

1853338516885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198538403.

The product of its digits is 82944000, while the sum is 64.

The spelling of 1853338516885 in words is "one trillion, eight hundred fifty-three billion, three hundred thirty-eight million, five hundred sixteen thousand, eight hundred eighty-five".