25866912196050 has 96 divisors (see below), whose sum is σ = 66982187115648. Its totient is φ = 6593687147520.

The previous prime is 25866912196039. The next prime is 25866912196057. The reversal of 25866912196050 is 5069121966852.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25866912196057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2943924 + ... + 7771776.

It is an arithmetic number, because the mean of its divisors is an integer number (697731115788).

Almost surely, 2^{25866912196050} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25866912196050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33491093557824).

25866912196050 is an abundant number, since it is smaller than the sum of its proper divisors (41115274919598).

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

25866912196050 is a wasteful number, since it uses less digits than its factorization.

25866912196050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4829444 (or 4829439 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 60.

The spelling of 25866912196050 in words is "twenty-five trillion, eight hundred sixty-six billion, nine hundred twelve million, one hundred ninety-six thousand, fifty".