25878344236 has 12 divisors (see below), whose sum is σ = 46054680840. Its totient is φ = 12719864000.

The previous prime is 25878344201. The next prime is 25878344273. The reversal of 25878344236 is 63244387852.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54826765 + ... + 54827236.

It is an arithmetic number, because the mean of its divisors is an integer number (3837890070).

Almost surely, 2^25878344236 is an apocalyptic number.

It is an amenable number.

25878344236 is a deficient number, since it is larger than the sum of its proper divisors (20176336604).

25878344236 is a wasteful number, since it uses less digits than its factorization.

25878344236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109654064 (or 109654062 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 52.

The spelling of 25878344236 in words is "twenty-five billion, eight hundred seventy-eight million, three hundred forty-four thousand, two hundred thirty-six".