851013198 has 24 divisors (see below), whose sum is σ = 2107271088. Its totient is φ = 243146592.

The previous prime is 851013197. The next prime is 851013221. The reversal of 851013198 is 891310158.

851013198 is a `hidden beast` number, since 8 + 510 + 131 + 9 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851013197) 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 11 ways as a sum of consecutive naturals, for example, 3376911 + ... + 3377162.

It is an arithmetic number, because the mean of its divisors is an integer number (87802962).

Almost surely, 2^851013198 is an apocalyptic number.

851013198 is an abundant number, since it is smaller than the sum of its proper divisors (1256257890).

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

851013198 is a wasteful number, since it uses less digits than its factorization.

851013198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754088 (or 6754085 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 851013198 is about 29172.1305015592. The cubic root of 851013198 is about 947.6444682399.

The spelling of 851013198 in words is "eight hundred fifty-one million, thirteen thousand, one hundred ninety-eight".