851361284 has 24 divisors (see below), whose sum is σ = 1576568448. Its totient is φ = 401434880.

The previous prime is 851361283. The next prime is 851361289. The reversal of 851361284 is 482163158.

It is not an unprimeable number, because it can be changed into a prime (851361283) 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, 58637 + ... + 71700.

It is an arithmetic number, because the mean of its divisors is an integer number (65690352).

Almost surely, 2^851361284 is an apocalyptic number.

It is an amenable number.

851361284 is a deficient number, since it is larger than the sum of its proper divisors (725207164).

851361284 is a wasteful number, since it uses less digits than its factorization.

851361284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130435 (or 130433 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 851361284 is about 29178.0959625538. The cubic root of 851361284 is about 947.7736541756.

The spelling of 851361284 in words is "eight hundred fifty-one million, three hundred sixty-one thousand, two hundred eighty-four".