195350133857 has 4 divisors (see below), whose sum is σ = 195608192916. Its totient is φ = 195092074800.

The previous prime is 195350133833. The next prime is 195350133859. The reversal of 195350133857 is 758331053591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48966608656 + 146383525201 = 221284^2 + 382601^2 .

It is a cyclic number.

It is not a de Polignac number, because 195350133857 - 2¹⁶ = 195350068321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195350133859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129028394 + ... + 129029907.

It is an arithmetic number, because the mean of its divisors is an integer number (48902048229).

Almost surely, 2^195350133857 is an apocalyptic number.

It is an amenable number.

195350133857 is a deficient number, since it is larger than the sum of its proper divisors (258059059).

195350133857 is an equidigital number, since it uses as much as digits as its factorization.

195350133857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258059058.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 195350133857 in words is "one hundred ninety-five billion, three hundred fifty million, one hundred thirty-three thousand, eight hundred fifty-seven".