78850188 has 36 divisors (see below), whose sum is σ = 206191440. Its totient is φ = 25376736.

The previous prime is 78850153. The next prime is 78850201. The reversal of 78850188 is 88105887.

It is a happy number.

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

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 11 ways as a sum of consecutive naturals, for example, 36720 + ... + 38807.

It is an arithmetic number, because the mean of its divisors is an integer number (5727540).

Almost surely, 2^78850188 is an apocalyptic number.

It is an amenable number.

78850188 is an abundant number, since it is smaller than the sum of its proper divisors (127341252).

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

78850188 is a wasteful number, since it uses less digits than its factorization.

78850188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75566 (or 75561 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 45.

The square root of 78850188 is about 8879.7628346708. The cubic root of 78850188 is about 428.8126392628.

The spelling of 78850188 in words is "seventy-eight million, eight hundred fifty thousand, one hundred eighty-eight".