851045812 has 24 divisors (see below), whose sum is σ = 1509179616. Its totient is φ = 419864928.

The previous prime is 851045771. The next prime is 851045837. The reversal of 851045812 is 218540158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454903 + ... + 456769.

It is an arithmetic number, because the mean of its divisors is an integer number (62882484).

Almost surely, 2^851045812 is an apocalyptic number.

It is an amenable number.

851045812 is a deficient number, since it is larger than the sum of its proper divisors (658133804).

851045812 is a wasteful number, since it uses less digits than its factorization.

851045812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327 (or 3325 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 851045812 is about 29172.6894886296. The cubic root of 851045812 is about 947.6565738422.

The spelling of 851045812 in words is "eight hundred fifty-one million, forty-five thousand, eight hundred twelve".