628691549212 has 12 divisors (see below), whose sum is σ = 1164928458960. Its totient is φ = 295854846656.

The previous prime is 628691549183. The next prime is 628691549243. The reversal of 628691549212 is 212945196826.

628691549212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4622731912 + ... + 4622732047.

It is an arithmetic number, because the mean of its divisors is an integer number (97077371580).

Almost surely, 2^628691549212 is an apocalyptic number.

It is an amenable number.

628691549212 is a deficient number, since it is larger than the sum of its proper divisors (536236909748).

628691549212 is a wasteful number, since it uses less digits than its factorization.

628691549212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9245463980 (or 9245463978 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 55.

The spelling of 628691549212 in words is "six hundred twenty-eight billion, six hundred ninety-one million, five hundred forty-nine thousand, two hundred twelve".