628213484172 has 48 divisors (see below), whose sum is σ = 1547009372160. Its totient is φ = 197865206208.

The previous prime is 628213484149. The next prime is 628213484183. The reversal of 628213484172 is 271484312826.

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, 3509703 + ... + 3684350.

It is an arithmetic number, because the mean of its divisors is an integer number (32229361920).

Almost surely, 2^628213484172 is an apocalyptic number.

It is an amenable number.

628213484172 is an abundant number, since it is smaller than the sum of its proper divisors (918795887988).

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

628213484172 is a wasteful number, since it uses less digits than its factorization.

628213484172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7194462 (or 7194460 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

Adding to 628213484172 its reverse (271484312826), we get a palindrome (899697796998).

The spelling of 628213484172 in words is "six hundred twenty-eight billion, two hundred thirteen million, four hundred eighty-four thousand, one hundred seventy-two".