850638571052 has 36 divisors (see below), whose sum is σ = 1579866898680. Its totient is φ = 400682909952.

The previous prime is 850638571021. The next prime is 850638571073. The reversal of 850638571052 is 250175836058.

It is a happy number.

It is a super-2 number, since 2×850638571052² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1387013 + ... + 1903964.

It is an arithmetic number, because the mean of its divisors is an integer number (43885191630).

Almost surely, 2^850638571052 is an apocalyptic number.

It is an amenable number.

850638571052 is a deficient number, since it is larger than the sum of its proper divisors (729228327628).

850638571052 is a wasteful number, since it uses less digits than its factorization.

850638571052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291198 (or 3291177 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 850638571052 in words is "eight hundred fifty billion, six hundred thirty-eight million, five hundred seventy-one thousand, fifty-two".