1628678159 has 8 divisors (see below), whose sum is σ = 1656402048. Its totient is φ = 1601087320.

The previous prime is 1628678123. The next prime is 1628678189. The reversal of 1628678159 is 9518768261.

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 1628678159 - 2²⁴ = 1611900943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1628678159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628678189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8417 + ... + 57690.

It is an arithmetic number, because the mean of its divisors is an integer number (207050256).

Almost surely, 2^1628678159 is an apocalyptic number.

1628678159 is a deficient number, since it is larger than the sum of its proper divisors (27723889).

1628678159 is an equidigital number, since it uses as much as digits as its factorization.

1628678159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66525.

The product of its digits is 1451520, while the sum is 53.

The square root of 1628678159 is about 40356.8849020833. The cubic root of 1628678159 is about 1176.5537095764.

The spelling of 1628678159 in words is "one billion, six hundred twenty-eight million, six hundred seventy-eight thousand, one hundred fifty-nine".