25950196198 has 32 divisors (see below), whose sum is σ = 40909131648. Its totient is φ = 12331238400.

The previous prime is 25950196081. The next prime is 25950196213. The reversal of 25950196198 is 89169105952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1804878 + ... + 1819198.

It is an arithmetic number, because the mean of its divisors is an integer number (1278410364).

Almost surely, 2^25950196198 is an apocalyptic number.

25950196198 is a deficient number, since it is larger than the sum of its proper divisors (14958935450).

25950196198 is a wasteful number, since it uses less digits than its factorization.

25950196198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14928.

The product of its (nonzero) digits is 1749600, while the sum is 55.

The spelling of 25950196198 in words is "twenty-five billion, nine hundred fifty million, one hundred ninety-six thousand, one hundred ninety-eight".