25865642130 has 16 divisors (see below), whose sum is σ = 62077541184. Its totient is φ = 6897504560.

The previous prime is 25865642129. The next prime is 25865642203. The reversal of 25865642130 is 3124656852.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431094006 + ... + 431094065.

It is an arithmetic number, because the mean of its divisors is an integer number (3879846324).

Almost surely, 2^25865642130 is an apocalyptic number.

25865642130 is an abundant number, since it is smaller than the sum of its proper divisors (36211899054).

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

25865642130 is a wasteful number, since it uses less digits than its factorization.

25865642130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862188081.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 25865642130 in words is "twenty-five billion, eight hundred sixty-five million, six hundred forty-two thousand, one hundred thirty".