2500136868 has 24 divisors (see below), whose sum is σ = 5975938080. Its totient is φ = 813052480.

The previous prime is 2500136867. The next prime is 2500136897. The reversal of 2500136868 is 8686310052.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2500136867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2540298 + ... + 2541281.

It is an arithmetic number, because the mean of its divisors is an integer number (248997420).

Almost surely, 2^2500136868 is an apocalyptic number.

It is an amenable number.

2500136868 is an abundant number, since it is smaller than the sum of its proper divisors (3475801212).

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

2500136868 is a wasteful number, since it uses less digits than its factorization.

2500136868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081627 (or 5081625 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 2500136868 is about 50001.3686612677. The cubic root of 2500136868 is about 1357.2335756395.

The spelling of 2500136868 in words is "two billion, five hundred million, one hundred thirty-six thousand, eight hundred sixty-eight".