25984750198 has 8 divisors (see below), whose sum is σ = 42520500360. Its totient is φ = 11811250080.

The previous prime is 25984750193. The next prime is 25984750229. The reversal of 25984750198 is 89105748952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×25984750198² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25984750193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590562483 + ... + 590562526.

It is an arithmetic number, because the mean of its divisors is an integer number (5315062545).

Almost surely, 2^25984750198 is an apocalyptic number.

25984750198 is a deficient number, since it is larger than the sum of its proper divisors (16535750162).

25984750198 is a wasteful number, since it uses less digits than its factorization.

25984750198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181125022.

The product of its (nonzero) digits is 7257600, while the sum is 58.

The spelling of 25984750198 in words is "twenty-five billion, nine hundred eighty-four million, seven hundred fifty thousand, one hundred ninety-eight".