851347651 has 12 divisors (see below), whose sum is σ = 1069462576. Its totient is φ = 663387120.

The previous prime is 851347643. The next prime is 851347697. The reversal of 851347651 is 156743158.

It is a happy number.

851347651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 851347651 - 2³ = 851347643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (851317651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501720 + ... + 503413.

Almost surely, 2^851347651 is an apocalyptic number.

851347651 is a deficient number, since it is larger than the sum of its proper divisors (218114925).

851347651 is a wasteful number, since it uses less digits than its factorization.

851347651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005162 (or 1005151 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 851347651 is about 29177.8623445927. The cubic root of 851347651 is about 947.7685951924.

The spelling of 851347651 in words is "eight hundred fifty-one million, three hundred forty-seven thousand, six hundred fifty-one".