851208012 has 36 divisors (see below), whose sum is σ = 2245217520. Its totient is φ = 271399392.

The previous prime is 851207993. The next prime is 851208047. The reversal of 851208012 is 210802158.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 513187 + ... + 514842.

Almost surely, 2^851208012 is an apocalyptic number.

It is an amenable number.

851208012 is an abundant number, since it is smaller than the sum of its proper divisors (1394009508).

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

851208012 is a wasteful number, since it uses less digits than its factorization.

851208012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028062 (or 1028057 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 851208012 is about 29175.4693535511. The cubic root of 851208012 is about 947.7167743351.

The spelling of 851208012 in words is "eight hundred fifty-one million, two hundred eight thousand, twelve".