851234738936 has 16 divisors (see below), whose sum is σ = 1596418393200. Its totient is φ = 425523167424.

The previous prime is 851234738929. The next prime is 851234738971. The reversal of 851234738936 is 639837432158.

It is a happy number.

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, 11736845 + ... + 11809148.

It is an arithmetic number, because the mean of its divisors is an integer number (99776149575).

Almost surely, 2^851234738936 is an apocalyptic number.

It is an amenable number.

851234738936 is a deficient number, since it is larger than the sum of its proper divisors (745183654264).

851234738936 is a wasteful number, since it uses less digits than its factorization.

851234738936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23550518 (or 23550514 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 59.

The spelling of 851234738936 in words is "eight hundred fifty-one billion, two hundred thirty-four million, seven hundred thirty-eight thousand, nine hundred thirty-six".