2628407399 has 2 divisors, whose sum is σ = 2628407400. Its totient is φ = 2628407398.

The previous prime is 2628407357. The next prime is 2628407471. The reversal of 2628407399 is 9937048262.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2628407399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2628407099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314203699 + 1314203700.

It is an arithmetic number, because the mean of its divisors is an integer number (1314203700).

Almost surely, 2^2628407399 is an apocalyptic number.

2628407399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628407399 is an equidigital number, since it uses as much as digits as its factorization.

2628407399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 2628407399 is about 51267.9958551141. The cubic root of 2628407399 is about 1380.0587034819.

The spelling of 2628407399 in words is "two billion, six hundred twenty-eight million, four hundred seven thousand, three hundred ninety-nine".