851359623612 has 48 divisors (see below), whose sum is σ = 1995697660320. Its totient is φ = 282474231808.

The previous prime is 851359623599. The next prime is 851359623613. The reversal of 851359623612 is 216326953158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851359623613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8587558 + ... + 8686130.

It is an arithmetic number, because the mean of its divisors is an integer number (41577034590).

Almost surely, 2^851359623612 is an apocalyptic number.

It is an amenable number.

851359623612 is an abundant number, since it is smaller than the sum of its proper divisors (1144338036708).

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

851359623612 is a wasteful number, since it uses less digits than its factorization.

851359623612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101902 (or 101900 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 51.

The spelling of 851359623612 in words is "eight hundred fifty-one billion, three hundred fifty-nine million, six hundred twenty-three thousand, six hundred twelve".