2628071999 has 8 divisors (see below), whose sum is σ = 3018758688. Its totient is φ = 2241197280.

The previous prime is 2628071993. The next prime is 2628072019. The reversal of 2628071999 is 9991708262.

It is a Cunningham number, because it is equal to 1380³-1.

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

It is not a de Polignac number, because 2628071999 - 2¹² = 2628067903 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 2628071999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628071993) 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, 951512 + ... + 954269.

It is an arithmetic number, because the mean of its divisors is an integer number (377344836).

Almost surely, 2^2628071999 is an apocalyptic number.

2628071999 is a deficient number, since it is larger than the sum of its proper divisors (390686689).

2628071999 is a wasteful number, since it uses less digits than its factorization.

2628071999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905985.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 2628071999 is about 51264.7247042252. The cubic root of 2628071999 is about 1379.9999998250. Note that the first 6 decimals are identical.

The spelling of 2628071999 in words is "two billion, six hundred twenty-eight million, seventy-one thousand, nine hundred ninety-nine".