628123709320 has 64 divisors (see below), whose sum is σ = 1429095208320. Its totient is φ = 248444765184.

The previous prime is 628123709261. The next prime is 628123709321. The reversal of 628123709320 is 23907321826.

628123709320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (628123709321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2702352 + ... + 2925568.

It is an arithmetic number, because the mean of its divisors is an integer number (22329612630).

Almost surely, 2^628123709320 is an apocalyptic number.

It is an amenable number.

628123709320 is an abundant number, since it is smaller than the sum of its proper divisors (800971499000).

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

628123709320 is a wasteful number, since it uses less digits than its factorization.

628123709320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224014 (or 224010 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 628123709320 in words is "six hundred twenty-eight billion, one hundred twenty-three million, seven hundred nine thousand, three hundred twenty".