195851275481 has 8 divisors (see below), whose sum is σ = 206662803840. Its totient is φ = 185231101792.

The previous prime is 195851275469. The next prime is 195851275483. The reversal of 195851275481 is 184572158591.

It is a happy number.

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-195851275481 is a prime.

It is a super-2 number, since 2×195851275481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195851275483) 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, 47836565 + ... + 47840658.

It is an arithmetic number, because the mean of its divisors is an integer number (25832850480).

Almost surely, 2^195851275481 is an apocalyptic number.

It is an amenable number.

195851275481 is a deficient number, since it is larger than the sum of its proper divisors (10811528359).

195851275481 is an equidigital number, since it uses as much as digits as its factorization.

195851275481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95677335.

The product of its digits is 4032000, while the sum is 56.

The spelling of 195851275481 in words is "one hundred ninety-five billion, eight hundred fifty-one million, two hundred seventy-five thousand, four hundred eighty-one".