79851168 has 36 divisors (see below), whose sum is σ = 227077578. Its totient is φ = 26616960.

The previous prime is 79851137. The next prime is 79851169. The reversal of 79851168 is 86115897.

79851168 is a `hidden beast` number, since 79 + 8 + 511 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 59166864 + 20684304 = 7692^2 + 4548^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (79851169) by changing a digit.

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, 138343 + ... + 138918.

Almost surely, 2^79851168 is an apocalyptic number.

It is an amenable number.

79851168 is an abundant number, since it is smaller than the sum of its proper divisors (147226410).

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

79851168 is a wasteful number, since it uses less digits than its factorization.

79851168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277277 (or 277266 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 79851168 is about 8935.9480750506. The cubic root of 79851168 is about 430.6195647776.

The spelling of 79851168 in words is "seventy-nine million, eight hundred fifty-one thousand, one hundred sixty-eight".