195890141972 has 24 divisors (see below), whose sum is σ = 391807295040. Its totient is φ = 83947129920.

The previous prime is 195890141969. The next prime is 195890141977. The reversal of 195890141972 is 279141098591.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195890141977) 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, 185447 + ... + 652817.

It is an arithmetic number, because the mean of its divisors is an integer number (16325303960).

Almost surely, 2^195890141972 is an apocalyptic number.

It is an amenable number.

195890141972 is an abundant number, since it is smaller than the sum of its proper divisors (195917153068).

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

195890141972 is a wasteful number, since it uses less digits than its factorization.

195890141972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482351 (or 482349 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 56.

The spelling of 195890141972 in words is "one hundred ninety-five billion, eight hundred ninety million, one hundred forty-one thousand, nine hundred seventy-two".