773608800420 has 144 divisors (see below), whose sum is σ = 2360428342272. Its totient is φ = 205084535040.

The previous prime is 773608800413. The next prime is 773608800421. The reversal of 773608800420 is 24008806377.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (773608800421) 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 47 ways as a sum of consecutive naturals, for example, 22568014 + ... + 22602266.

It is an arithmetic number, because the mean of its divisors is an integer number (16391863488).

Almost surely, 2^773608800420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 773608800420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1180214171136).

773608800420 is an abundant number, since it is smaller than the sum of its proper divisors (1586819541852).

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

773608800420 is a wasteful number, since it uses less digits than its factorization.

773608800420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35002 (or 34997 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 773608800420 in words is "seven hundred seventy-three billion, six hundred eight million, eight hundred thousand, four hundred twenty".