196231858331 has 4 divisors (see below), whose sum is σ = 198596097672. Its totient is φ = 193867618992.

The previous prime is 196231858309. The next prime is 196231858337. The reversal of 196231858331 is 133858132691.

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

It is a cyclic number.

It is not a de Polignac number, because 196231858331 - 2²⁶ = 196164749467 is a prime.

It is a super-2 number, since 2×196231858331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196231858331.

It is not an unprimeable number, because it can be changed into a prime (196231858337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182119546 + ... + 1182119711.

It is an arithmetic number, because the mean of its divisors is an integer number (49649024418).

Almost surely, 2^196231858331 is an apocalyptic number.

196231858331 is a deficient number, since it is larger than the sum of its proper divisors (2364239341).

196231858331 is an equidigital number, since it uses as much as digits as its factorization.

196231858331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364239340.

The product of its digits is 933120, while the sum is 50.

The spelling of 196231858331 in words is "one hundred ninety-six billion, two hundred thirty-one million, eight hundred fifty-eight thousand, three hundred thirty-one".