195234211731 has 16 divisors (see below), whose sum is σ = 282817162656. Its totient is φ = 119080905216.

The previous prime is 195234211723. The next prime is 195234211741. The reversal of 195234211731 is 137112432591.

It is not a de Polignac number, because 195234211731 - 2³ = 195234211723 is a prime.

It is a super-2 number, since 2×195234211731² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 195234211731.

It is not an unprimeable number, because it can be changed into a prime (195234211741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22146060 + ... + 22154873.

It is an arithmetic number, because the mean of its divisors is an integer number (17676072666).

Almost surely, 2^195234211731 is an apocalyptic number.

195234211731 is a deficient number, since it is larger than the sum of its proper divisors (87582950925).

195234211731 is a wasteful number, since it uses less digits than its factorization.

195234211731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44301062.

The product of its digits is 45360, while the sum is 39.

The spelling of 195234211731 in words is "one hundred ninety-five billion, two hundred thirty-four million, two hundred eleven thousand, seven hundred thirty-one".