628906724018 has 32 divisors (see below), whose sum is σ = 985835999232. Its totient is φ = 300547990800.

The previous prime is 628906723979. The next prime is 628906724021. The reversal of 628906724018 is 810427609826.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17802953 + ... + 17838243.

It is an arithmetic number, because the mean of its divisors is an integer number (30807374976).

Almost surely, 2^628906724018 is an apocalyptic number.

628906724018 is a deficient number, since it is larger than the sum of its proper divisors (356929275214).

628906724018 is a wasteful number, since it uses less digits than its factorization.

628906724018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38870.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 628906724018 in words is "six hundred twenty-eight billion, nine hundred six million, seven hundred twenty-four thousand, eighteen".