850638571042 has 32 divisors (see below), whose sum is σ = 1380906543744. Its totient is φ = 390660883200.

The previous prime is 850638571021. The next prime is 850638571073. The reversal of 850638571042 is 240175836058.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32502442 + ... + 32528602.

It is an arithmetic number, because the mean of its divisors is an integer number (43153329492).

Almost surely, 2^850638571042 is an apocalyptic number.

850638571042 is a deficient number, since it is larger than the sum of its proper divisors (530267972702).

850638571042 is a wasteful number, since it uses less digits than its factorization.

850638571042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32314.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 850638571042 in words is "eight hundred fifty billion, six hundred thirty-eight million, five hundred seventy-one thousand, forty-two".