25800998146 has 16 divisors (see below), whose sum is σ = 48251217600. Its totient is φ = 10052336880.

The previous prime is 25800998099. The next prime is 25800998161. The reversal of 25800998146 is 64189900852.

It is a junction number, because it is equal to n+sod(n) for n = 25800998093 and 25800998102.

It is an unprimeable number.

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, 83769321 + ... + 83769628.

It is an arithmetic number, because the mean of its divisors is an integer number (3015701100).

Almost surely, 2^25800998146 is an apocalyptic number.

25800998146 is a deficient number, since it is larger than the sum of its proper divisors (22450219454).

25800998146 is a wasteful number, since it uses less digits than its factorization.

25800998146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167538969.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 25800998146 in words is "twenty-five billion, eight hundred million, nine hundred ninety-eight thousand, one hundred forty-six".