2628666339 has 16 divisors (see below), whose sum is σ = 3797106432. Its totient is φ = 1607950368.

The previous prime is 2628666331. The next prime is 2628666347. The reversal of 2628666339 is 9336668262.

It is an interprime number because it is at equal distance from previous prime (2628666331) and next prime (2628666347).

It is not a de Polignac number, because 2628666339 - 2³ = 2628666331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2628666291 and 2628666300.

It is not an unprimeable number, because it can be changed into a prime (2628666331) 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 15 ways as a sum of consecutive naturals, for example, 195289 + ... + 208314.

It is an arithmetic number, because the mean of its divisors is an integer number (237319152).

Almost surely, 2^2628666339 is an apocalyptic number.

2628666339 is a deficient number, since it is larger than the sum of its proper divisors (1168440093).

2628666339 is a wasteful number, since it uses less digits than its factorization.

2628666339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403786.

The product of its digits is 3359232, while the sum is 51.

The square root of 2628666339 is about 51270.5211500722. The cubic root of 2628666339 is about 1380.1040212494.

The spelling of 2628666339 in words is "two billion, six hundred twenty-eight million, six hundred sixty-six thousand, three hundred thirty-nine".