195000237440 has 64 divisors (see below), whose sum is σ = 481210312320. Its totient is φ = 75483955200.

The previous prime is 195000237427. The next prime is 195000237457. The reversal of 195000237440 is 44732000591.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 195000237440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4894481 + ... + 4934160.

It is an arithmetic number, because the mean of its divisors is an integer number (7518911130).

Almost surely, 2^195000237440 is an apocalyptic number.

195000237440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195000237440 is an abundant number, since it is smaller than the sum of its proper divisors (286210074880).

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

195000237440 is an equidigital number, since it uses as much as digits as its factorization.

195000237440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9828691 (or 9828679 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 195000237440 in words is "one hundred ninety-five billion, two hundred thirty-seven thousand, four hundred forty".