851252886120 has 2048 divisors, whose sum is σ = 3628154880000. Its totient is φ = 158018273280.

The previous prime is 851252886103. The next prime is 851252886161. The reversal of 851252886120 is 21688252158.

It is a super-2 number, since 2×851252886120² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 851252886120.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 11660998404 + ... + 11660998476.

It is an arithmetic number, because the mean of its divisors is an integer number (1771560000).

Almost surely, 2^851252886120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 851252886120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814077440000).

851252886120 is an abundant number, since it is smaller than the sum of its proper divisors (2776901993880).

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

851252886120 is a wasteful number, since it uses less digits than its factorization.

851252886120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 48.

The spelling of 851252886120 in words is "eight hundred fifty-one billion, two hundred fifty-two million, eight hundred eighty-six thousand, one hundred twenty".