628766286719999 has 4 divisors (see below), whose sum is σ = 628766346207864. Its totient is φ = 628766227232136.

The previous prime is 628766286719867. The next prime is 628766286720001. The reversal of 628766286719999 is 999917682667826.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 628766286719999 - 2⁴⁰ = 627666775092223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628766286919999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9124997 + ... + 36616910.

It is an arithmetic number, because the mean of its divisors is an integer number (157191586551966).

Almost surely, 2^{628766286719999} is an apocalyptic number.

628766286719999 is a deficient number, since it is larger than the sum of its proper divisors (59487865).

628766286719999 is a wasteful number, since it uses less digits than its factorization.

628766286719999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59487864.

The product of its digits is 106662334464, while the sum is 95.

The spelling of 628766286719999 in words is "six hundred twenty-eight trillion, seven hundred sixty-six billion, two hundred eighty-six million, seven hundred nineteen thousand, nine hundred ninety-nine".