628660471042 has 8 divisors (see below), whose sum is σ = 943117970832. Its totient is φ = 314287814100.

The previous prime is 628660471031. The next prime is 628660471063. The reversal of 628660471042 is 240174066826.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 628660470983 and 628660471001.

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, 21192184 + ... + 21221827.

It is an arithmetic number, because the mean of its divisors is an integer number (117889746354).

Almost surely, 2^628660471042 is an apocalyptic number.

628660471042 is a deficient number, since it is larger than the sum of its proper divisors (314457499790).

628660471042 is a wasteful number, since it uses less digits than its factorization.

628660471042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42421424.

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 628660471042 in words is "six hundred twenty-eight billion, six hundred sixty million, four hundred seventy-one thousand, forty-two".