1804198620185 has 16 divisors (see below), whose sum is σ = 2454294480960. Its totient is φ = 1262208588480.

The previous prime is 1804198620173. The next prime is 1804198620193. The reversal of 1804198620185 is 5810268914081.

It is not a de Polignac number, because 1804198620185 - 2⁸ = 1804198619929 is a prime.

It is a super-2 number, since 2×1804198620185² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730443551 + ... + 730446020.

It is an arithmetic number, because the mean of its divisors is an integer number (153393405060).

Almost surely, 2^{1804198620185} is an apocalyptic number.

It is an amenable number.

1804198620185 is a deficient number, since it is larger than the sum of its proper divisors (650095860775).

1804198620185 is a wasteful number, since it uses less digits than its factorization.

1804198620185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460889608.

The product of its (nonzero) digits is 1105920, while the sum is 53.

The spelling of 1804198620185 in words is "one trillion, eight hundred four billion, one hundred ninety-eight million, six hundred twenty thousand, one hundred eighty-five".