628928289291 has 8 divisors (see below), whose sum is σ = 887898761424. Its totient is φ = 394621671680.

The previous prime is 628928289247. The next prime is 628928289307. The reversal of 628928289291 is 192982829826.

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

It is a cyclic number.

It is not a de Polignac number, because 628928289291 - 2¹⁹ = 628927765003 is a prime.

It is a super-4 number, since 4×628928289291⁴ (a number of 48 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (628928287291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6165963570 + ... + 6165963671.

It is an arithmetic number, because the mean of its divisors is an integer number (110987345178).

Almost surely, 2^628928289291 is an apocalyptic number.

628928289291 is a deficient number, since it is larger than the sum of its proper divisors (258970472133).

628928289291 is a wasteful number, since it uses less digits than its factorization.

628928289291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12331927261.

The product of its digits is 35831808, while the sum is 66.

The spelling of 628928289291 in words is "six hundred twenty-eight billion, nine hundred twenty-eight million, two hundred eighty-nine thousand, two hundred ninety-one".