25978286000 has 40 divisors (see below), whose sum is σ = 62815500384. Its totient is φ = 10391313600.

The previous prime is 25978285999. The next prime is 25978286003. The reversal of 25978286000 is 68287952.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (25978286003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6492572 + ... + 6496571.

Almost surely, 2^25978286000 is an apocalyptic number.

25978286000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25978286000 is an abundant number, since it is smaller than the sum of its proper divisors (36837214384).

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

25978286000 is a wasteful number, since it uses less digits than its factorization.

25978286000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12989166 (or 12989150 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 25978286000 in words is "twenty-five billion, nine hundred seventy-eight million, two hundred eighty-six thousand".