195388420625 has 40 divisors (see below), whose sum is σ = 250961916480. Its totient is φ = 151961400000.

The previous prime is 195388420543. The next prime is 195388420639. The reversal of 195388420625 is 526024883591.

It is a happy number.

195388420625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 195388420625 - 2¹² = 195388416529 is a prime.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 36511700 + ... + 36517050.

It is an arithmetic number, because the mean of its divisors is an integer number (6274047912).

Almost surely, 2^195388420625 is an apocalyptic number.

It is an amenable number.

195388420625 is a deficient number, since it is larger than the sum of its proper divisors (55573495855).

195388420625 is an equidigital number, since it uses as much as digits as its factorization.

195388420625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6987 (or 6972 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 195388420625 in words is "one hundred ninety-five billion, three hundred eighty-eight million, four hundred twenty thousand, six hundred twenty-five".