195040191783 has 16 divisors (see below), whose sum is σ = 260722598400. Its totient is φ = 129692465760.

The previous prime is 195040191767. The next prime is 195040191791. The reversal of 195040191783 is 387191040591.

195040191783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 195040191783 - 2⁴ = 195040191767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195040191743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4878013 + ... + 4917833.

It is an arithmetic number, because the mean of its divisors is an integer number (16295162400).

Almost surely, 2^195040191783 is an apocalyptic number.

195040191783 is a deficient number, since it is larger than the sum of its proper divisors (65682406617).

195040191783 is a wasteful number, since it uses less digits than its factorization.

195040191783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43982.

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 195040191783 in words is "one hundred ninety-five billion, forty million, one hundred ninety-one thousand, seven hundred eighty-three".