1855394827136 has 32 divisors (see below), whose sum is σ = 3722886463800. Its totient is φ = 921023322624.

The previous prime is 1855394827127. The next prime is 1855394827141. The reversal of 1855394827136 is 6317284935581.

It is a tau number, because it is divible by the number of its divisors (32).

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, 52123475 + ... + 52159058.

Almost surely, 2^{1855394827136} is an apocalyptic number.

1855394827136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1855394827136 is an abundant number, since it is smaller than the sum of its proper divisors (1867491636664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1855394827136 is a wasteful number, since it uses less digits than its factorization.

1855394827136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104282686 (or 104282674 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 62.

The spelling of 1855394827136 in words is "one trillion, eight hundred fifty-five billion, three hundred ninety-four million, eight hundred twenty-seven thousand, one hundred thirty-six".