196481677778 has 8 divisors (see below), whose sum is σ = 304229694720. Its totient is φ = 95071779540.

The previous prime is 196481677759. The next prime is 196481677781. The reversal of 196481677778 is 877776184691.

196481677778 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1584529598 + ... + 1584529721.

It is an arithmetic number, because the mean of its divisors is an integer number (38028711840).

Almost surely, 2^196481677778 is an apocalyptic number.

196481677778 is a deficient number, since it is larger than the sum of its proper divisors (107748016942).

196481677778 is a wasteful number, since it uses less digits than its factorization.

196481677778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169059352.

The product of its digits is 199148544, while the sum is 71.

The spelling of 196481677778 in words is "one hundred ninety-six billion, four hundred eighty-one million, six hundred seventy-seven thousand, seven hundred seventy-eight".