196143374839 has 4 divisors (see below), whose sum is σ = 196157348280. Its totient is φ = 196129401400.

The previous prime is 196143374813. The next prime is 196143374857. The reversal of 196143374839 is 938473341691.

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 196143374839 - 2¹⁵ = 196143342071 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196143374039) 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, 6965644 + ... + 6993745.

It is an arithmetic number, because the mean of its divisors is an integer number (49039337070).

Almost surely, 2^196143374839 is an apocalyptic number.

196143374839 is a deficient number, since it is larger than the sum of its proper divisors (13973441).

196143374839 is a wasteful number, since it uses less digits than its factorization.

196143374839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13973440.

The product of its digits is 11757312, while the sum is 58.

The spelling of 196143374839 in words is "one hundred ninety-six billion, one hundred forty-three million, three hundred seventy-four thousand, eight hundred thirty-nine".