2559399068 has 6 divisors (see below), whose sum is σ = 4478948376. Its totient is φ = 1279699532.

The previous prime is 2559399061. The next prime is 2559399107. The reversal of 2559399068 is 8609939552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2559399061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319924880 + ... + 319924887.

It is an arithmetic number, because the mean of its divisors is an integer number (746491396).

Almost surely, 2^2559399068 is an apocalyptic number.

It is an amenable number.

2559399068 is a deficient number, since it is larger than the sum of its proper divisors (1919549308).

2559399068 is a wasteful number, since it uses less digits than its factorization.

2559399068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639849771 (or 639849769 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 56.

The square root of 2559399068 is about 50590.5037334083. The cubic root of 2559399068 is about 1367.8737094580.

The spelling of 2559399068 in words is "two billion, five hundred fifty-nine million, three hundred ninety-nine thousand, sixty-eight".