628810611816 has 128 divisors (see below), whose sum is σ = 1588991385600. Its totient is φ = 207358851840.

The previous prime is 628810611769. The next prime is 628810611817. The reversal of 628810611816 is 618116018826.

It is not an unprimeable number, because it can be changed into a prime (628810611817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 857858586 + ... + 857859318.

It is an arithmetic number, because the mean of its divisors is an integer number (12413995200).

Almost surely, 2^628810611816 is an apocalyptic number.

It is an amenable number.

628810611816 is an abundant number, since it is smaller than the sum of its proper divisors (960180773784).

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

628810611816 is a wasteful number, since it uses less digits than its factorization.

628810611816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759 (or 1755 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 48.

The spelling of 628810611816 in words is "six hundred twenty-eight billion, eight hundred ten million, six hundred eleven thousand, eight hundred sixteen".