774850818 has 192 divisors, whose sum is σ = 2046090240. Its totient is φ = 193995648.

The previous prime is 774850787. The next prime is 774850819. The reversal of 774850818 is 818058477.

It is not an unprimeable number, because it can be changed into a prime (774850819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4753605 + ... + 4753767.

It is an arithmetic number, because the mean of its divisors is an integer number (10656720).

Almost surely, 2^774850818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774850818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023045120).

774850818 is an abundant number, since it is smaller than the sum of its proper divisors (1271239422).

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

774850818 is a wasteful number, since it uses less digits than its factorization.

774850818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 48.

The square root of 774850818 is about 27836.1422973802. The cubic root of 774850818 is about 918.4863334094.

The spelling of 774850818 in words is "seven hundred seventy-four million, eight hundred fifty thousand, eight hundred eighteen".