196119718477 has 4 divisors (see below), whose sum is σ = 202882467420. Its totient is φ = 189356969536.

The previous prime is 196119718469. The next prime is 196119718489. The reversal of 196119718477 is 774817911691.

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 109727225001 + 86392493476 = 331251^2 + 293926^2 .

It is a cyclic number.

It is not a de Polignac number, because 196119718477 - 2³ = 196119718469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196119718427) 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, 3381374428 + ... + 3381374485.

It is an arithmetic number, because the mean of its divisors is an integer number (50720616855).

Almost surely, 2^196119718477 is an apocalyptic number.

It is an amenable number.

196119718477 is a deficient number, since it is larger than the sum of its proper divisors (6762748943).

196119718477 is an equidigital number, since it uses as much as digits as its factorization.

196119718477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762748942.

The product of its digits is 5334336, while the sum is 61.

The spelling of 196119718477 in words is "one hundred ninety-six billion, one hundred nineteen million, seven hundred eighteen thousand, four hundred seventy-seven".