851075830 has 32 divisors (see below), whose sum is σ = 1675378080. Its totient is φ = 308709120.

The previous prime is 851075783. The next prime is 851075839. The reversal of 851075830 is 38570158.

It is a self number, because there is not a number n which added to its sum of digits gives 851075830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851075839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35532 + ... + 54448.

It is an arithmetic number, because the mean of its divisors is an integer number (52355565).

Almost surely, 2^851075830 is an apocalyptic number.

851075830 is a deficient number, since it is larger than the sum of its proper divisors (824302250).

851075830 is a wasteful number, since it uses less digits than its factorization.

851075830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19344.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 851075830 is about 29173.2039721385. The cubic root of 851075830 is about 947.6677155928.

The spelling of 851075830 in words is "eight hundred fifty-one million, seventy-five thousand, eight hundred thirty".