851306268 has 24 divisors (see below), whose sum is σ = 2072746368. Its totient is φ = 271430896.

The previous prime is 851306257. The next prime is 851306293. The reversal of 851306268 is 862603158.

It is a happy number.

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, 1541946 + ... + 1542497.

It is an arithmetic number, because the mean of its divisors is an integer number (86364432).

Almost surely, 2^851306268 is an apocalyptic number.

It is an amenable number.

851306268 is an abundant number, since it is smaller than the sum of its proper divisors (1221440100).

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

851306268 is a wasteful number, since it uses less digits than its factorization.

851306268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084473 (or 3084471 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 851306268 is about 29177.1531853264. The cubic root of 851306268 is about 947.7532383076.

The spelling of 851306268 in words is "eight hundred fifty-one million, three hundred six thousand, two hundred sixty-eight".