1850338836685 has 4 divisors (see below), whose sum is σ = 2220406604028. Its totient is φ = 1480271069344.

The previous prime is 1850338836673. The next prime is 1850338836727. The reversal of 1850338836685 is 5866388330581.

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 1416740292361 + 433598544324 = 1190269^2 + 658482^2 .

It is a cyclic number.

It is not a de Polignac number, because 1850338836685 - 2⁷ = 1850338836557 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 3 ways as a sum of consecutive naturals, for example, 185033883664 + ... + 185033883673.

It is an arithmetic number, because the mean of its divisors is an integer number (555101651007).

Almost surely, 2^{1850338836685} is an apocalyptic number.

It is an amenable number.

1850338836685 is a deficient number, since it is larger than the sum of its proper divisors (370067767343).

1850338836685 is an equidigital number, since it uses as much as digits as its factorization.

1850338836685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370067767342.

The product of its (nonzero) digits is 99532800, while the sum is 64.

The spelling of 1850338836685 in words is "one trillion, eight hundred fifty billion, three hundred thirty-eight million, eight hundred thirty-six thousand, six hundred eighty-five".