851528272 has 30 divisors (see below), whose sum is σ = 1919198778. Its totient is φ = 364940352.

The previous prime is 851528257. The next prime is 851528329. The reversal of 851528272 is 272825158.

It can be written as a sum of positive squares in only one way, i.e., 836597776 + 14930496 = 28924^2 + 3864^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 542283 + ... + 543850.

Almost surely, 2^851528272 is an apocalyptic number.

It is an amenable number.

851528272 is an abundant number, since it is smaller than the sum of its proper divisors (1067670506).

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

851528272 is a wasteful number, since it uses less digits than its factorization.

851528272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086155 (or 1086142 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 851528272 is about 29180.9573523557. The cubic root of 851528272 is about 947.8356163074.

The spelling of 851528272 in words is "eight hundred fifty-one million, five hundred twenty-eight thousand, two hundred seventy-two".