41855684784820 has 12 divisors (see below), whose sum is σ = 87896938048164. Its totient is φ = 16742273913920.

The previous prime is 41855684784751. The next prime is 41855684784917. The reversal of 41855684784820 is 2848748655814.

It can be written as a sum of positive squares in 2 ways, for example, as 29954757932836 + 11900926851984 = 5473094^2 + 3449772^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 41855684784820.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046392119601 + ... + 1046392119640.

It is an arithmetic number, because the mean of its divisors is an integer number (7324744837347).

Almost surely, 2^{41855684784820} is an apocalyptic number.

It is an amenable number.

41855684784820 is an abundant number, since it is smaller than the sum of its proper divisors (46041253263344).

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

41855684784820 is a wasteful number, since it uses less digits than its factorization.

41855684784820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092784239250 (or 2092784239248 counting only the distinct ones).

The product of its (nonzero) digits is 550502400, while the sum is 70.

The spelling of 41855684784820 in words is "forty-one trillion, eight hundred fifty-five billion, six hundred eighty-four million, seven hundred eighty-four thousand, eight hundred twenty".