628667963817 has 8 divisors (see below), whose sum is σ = 846057820896. Its totient is φ = 415195041312.

The previous prime is 628667963789. The next prime is 628667963851. The reversal of 628667963817 is 718369766826.

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

It is not a de Polignac number, because 628667963817 - 2⁶ = 628667963753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (628667963857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979233268 + ... + 979233909.

It is an arithmetic number, because the mean of its divisors is an integer number (105757227612).

Almost surely, 2^628667963817 is an apocalyptic number.

It is an amenable number.

628667963817 is a deficient number, since it is larger than the sum of its proper divisors (217389857079).

628667963817 is a wasteful number, since it uses less digits than its factorization.

628667963817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958467287.

The product of its digits is 219469824, while the sum is 69.

The spelling of 628667963817 in words is "six hundred twenty-eight billion, six hundred sixty-seven million, nine hundred sixty-three thousand, eight hundred seventeen".