102855785284 has 12 divisors (see below), whose sum is σ = 205711570624. Its totient is φ = 44081050824.

The previous prime is 102855785281. The next prime is 102855785297. The reversal of 102855785284 is 482587558201.

102855785284 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (102855785281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836710424 + ... + 1836710479.

Almost surely, 2^102855785284 is an apocalyptic number.

102855785284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

102855785284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

102855785284 is a wasteful number, since it uses less digits than its factorization.

102855785284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673420914 (or 3673420912 counting only the distinct ones).

The product of its (nonzero) digits is 7168000, while the sum is 55.

The spelling of 102855785284 in words is "one hundred two billion, eight hundred fifty-five million, seven hundred eighty-five thousand, two hundred eighty-four".