851081324 has 12 divisors (see below), whose sum is σ = 1500762648. Its totient is φ = 422292000.

The previous prime is 851081281. The next prime is 851081359. The reversal of 851081324 is 423180158.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 811577 + ... + 812624.

It is an arithmetic number, because the mean of its divisors is an integer number (125063554).

Almost surely, 2^851081324 is an apocalyptic number.

It is an amenable number.

851081324 is a deficient number, since it is larger than the sum of its proper divisors (649681324).

851081324 is a wasteful number, since it uses less digits than its factorization.

851081324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624336 (or 1624334 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 851081324 is about 29173.2981337387. The cubic root of 851081324 is about 947.6697547668.

The spelling of 851081324 in words is "eight hundred fifty-one million, eighty-one thousand, three hundred twenty-four".