628424887280 has 40 divisors (see below), whose sum is σ = 1547034211152. Its totient is φ = 236583486464.

The previous prime is 628424887217. The next prime is 628424887283. The reversal of 628424887280 is 82788424826.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628424887283) 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 7 ways as a sum of consecutive naturals, for example, 231037202 + ... + 231039921.

Almost surely, 2^628424887280 is an apocalyptic number.

It is an amenable number.

628424887280 is an abundant number, since it is smaller than the sum of its proper divisors (918609323872).

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

628424887280 is a wasteful number, since it uses less digits than its factorization.

628424887280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462077153 (or 462077147 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 59.

The spelling of 628424887280 in words is "six hundred twenty-eight billion, four hundred twenty-four million, eight hundred eighty-seven thousand, two hundred eighty".