628813738662 has 32 divisors (see below), whose sum is σ = 1285911444480. Its totient is φ = 204942104640.

The previous prime is 628813738607. The next prime is 628813738673. The reversal of 628813738662 is 266837318826.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 628813738596 and 628813738605.

It is a congruent 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, 6391039 + ... + 6488682.

It is an arithmetic number, because the mean of its divisors is an integer number (40184732640).

Almost surely, 2^628813738662 is an apocalyptic number.

628813738662 is an abundant number, since it is smaller than the sum of its proper divisors (657097705818).

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

628813738662 is a wasteful number, since it uses less digits than its factorization.

628813738662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12879908.

The product of its digits is 27869184, while the sum is 60.

The spelling of 628813738662 in words is "six hundred twenty-eight billion, eight hundred thirteen million, seven hundred thirty-eight thousand, six hundred sixty-two".