25328187312 has 20 divisors (see below), whose sum is σ = 65431150680. Its totient is φ = 8442729088.

The previous prime is 25328187299. The next prime is 25328187337. The reversal of 25328187312 is 21378182352.

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, 263835237 + ... + 263835332.

It is an arithmetic number, because the mean of its divisors is an integer number (3271557534).

Almost surely, 2^25328187312 is an apocalyptic number.

It is an amenable number.

25328187312 is an abundant number, since it is smaller than the sum of its proper divisors (40102963368).

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

25328187312 is a wasteful number, since it uses less digits than its factorization.

25328187312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527670580 (or 527670574 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The spelling of 25328187312 in words is "twenty-five billion, three hundred twenty-eight million, one hundred eighty-seven thousand, three hundred twelve".