100847785842 has 48 divisors (see below), whose sum is σ = 226075898880. Its totient is φ = 32455987200.

The previous prime is 100847785817. The next prime is 100847785861. The reversal of 100847785842 is 248587748001.

100847785842 is a `hidden beast` number, since 10 + 0 + 8 + 47 + 7 + 8 + 584 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30834 + ... + 450162.

It is an arithmetic number, because the mean of its divisors is an integer number (4709914560).

Almost surely, 2^100847785842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100847785842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113037949440).

100847785842 is an abundant number, since it is smaller than the sum of its proper divisors (125228113038).

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

100847785842 is a wasteful number, since it uses less digits than its factorization.

100847785842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419799 (or 419796 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 54.

The spelling of 100847785842 in words is "one hundred billion, eight hundred forty-seven million, seven hundred eighty-five thousand, eight hundred forty-two".