2568139392 has 192 divisors, whose sum is σ = 8546580000. Its totient is φ = 677246976.

The previous prime is 2568139373. The next prime is 2568139393. The reversal of 2568139392 is 2939318652.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2568139393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239359 + ... + 249857.

Almost surely, 2^2568139392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2568139392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4273290000).

2568139392 is an abundant number, since it is smaller than the sum of its proper divisors (5978440608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2568139392 is a wasteful number, since it uses less digits than its factorization.

2568139392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10543 (or 10524 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 2568139392 is about 50676.8131594717. The cubic root of 2568139392 is about 1369.4290323245.

The spelling of 2568139392 in words is "two billion, five hundred sixty-eight million, one hundred thirty-nine thousand, three hundred ninety-two".