195946045439 has 8 divisors (see below), whose sum is σ = 207573378480. Its totient is φ = 184329945216.

The previous prime is 195946045429. The next prime is 195946045453. The reversal of 195946045439 is 934540649591.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195946045439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195946045429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2772269 + ... + 2842070.

It is an arithmetic number, because the mean of its divisors is an integer number (25946672310).

Almost surely, 2^195946045439 is an apocalyptic number.

195946045439 is a deficient number, since it is larger than the sum of its proper divisors (11627333041).

195946045439 is a wasteful number, since it uses less digits than its factorization.

195946045439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616409.

The product of its (nonzero) digits is 20995200, while the sum is 59.

The spelling of 195946045439 in words is "one hundred ninety-five billion, nine hundred forty-six million, forty-five thousand, four hundred thirty-nine".