851009260 has 24 divisors (see below), whose sum is σ = 1825145280. Its totient is φ = 333160704.

The previous prime is 851009249. The next prime is 851009261. The reversal of 851009260 is 62900158.

It is not an unprimeable number, because it can be changed into a prime (851009261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451725 + ... + 453604.

It is an arithmetic number, because the mean of its divisors is an integer number (76047720).

Almost surely, 2^851009260 is an apocalyptic number.

It is an amenable number.

851009260 is an abundant number, since it is smaller than the sum of its proper divisors (974136020).

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

851009260 is a wasteful number, since it uses less digits than its factorization.

851009260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905385 (or 905383 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 851009260 is about 29172.0630055538. The cubic root of 851009260 is about 947.6430065197.

The spelling of 851009260 in words is "eight hundred fifty-one million, nine thousand, two hundred sixty".