842500841851 has 4 divisors (see below), whose sum is σ = 865271134912. Its totient is φ = 819730548792.

The previous prime is 842500841839. The next prime is 842500841857. The reversal of 842500841851 is 158148005248.

It is a happy number.

842500841851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 842500841851 - 2¹⁵ = 842500809083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842500841857) 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, 11385146475 + ... + 11385146548.

It is an arithmetic number, because the mean of its divisors is an integer number (216317783728).

Almost surely, 2^842500841851 is an apocalyptic number.

842500841851 is a deficient number, since it is larger than the sum of its proper divisors (22770293061).

842500841851 is a wasteful number, since it uses less digits than its factorization.

842500841851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22770293060.

The product of its (nonzero) digits is 409600, while the sum is 46.

The spelling of 842500841851 in words is "eight hundred forty-two billion, five hundred million, eight hundred forty-one thousand, eight hundred fifty-one".