628751891975999 has 8 divisors (see below), whose sum is σ = 685936828413648. Its totient is φ = 571571234460160.

The previous prime is 628751891975989. The next prime is 628751891976037. The reversal of 628751891975999 is 999579198157826.

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

It is not a de Polignac number, because 628751891975999 - 2¹⁶ = 628751891910463 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 (628751891975939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1069423202 + ... + 1070010975.

It is an arithmetic number, because the mean of its divisors is an integer number (85742103551706).

Almost surely, 2^{628751891975999} is an apocalyptic number.

628751891975999 is a deficient number, since it is larger than the sum of its proper divisors (57184936437649).

628751891975999 is a wasteful number, since it uses less digits than its factorization.

628751891975999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139460905.

The product of its digits is 55553299200, while the sum is 95.

The spelling of 628751891975999 in words is "six hundred twenty-eight trillion, seven hundred fifty-one billion, eight hundred ninety-one million, nine hundred seventy-five thousand, nine hundred ninety-nine".