818768527850 has 48 divisors (see below), whose sum is σ = 1874350117248. Its totient is φ = 259126741440.

The previous prime is 818768527631. The next prime is 818768527867. The reversal of 818768527850 is 58725867818.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89970014 + ... + 89979113.

It is an arithmetic number, because the mean of its divisors is an integer number (39048960776).

Almost surely, 2^818768527850 is an apocalyptic number.

818768527850 is an abundant number, since it is smaller than the sum of its proper divisors (1055581589398).

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

818768527850 is a wasteful number, since it uses less digits than its factorization.

818768527850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179949159 (or 179949154 counting only the distinct ones).

The product of its (nonzero) digits is 60211200, while the sum is 65.

The spelling of 818768527850 in words is "eight hundred eighteen billion, seven hundred sixty-eight million, five hundred twenty-seven thousand, eight hundred fifty".