196677128735 has 4 divisors (see below), whose sum is σ = 236012554488. Its totient is φ = 157341702984.

The previous prime is 196677128729. The next prime is 196677128741. The reversal of 196677128735 is 537821776691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 537821776691 = 977 ⋅550482883.

It is an interprime number because it is at equal distance from previous prime (196677128729) and next prime (196677128741).

It is a cyclic number.

It is not a de Polignac number, because 196677128735 - 2¹⁰ = 196677127711 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 19667712869 + ... + 19667712878.

It is an arithmetic number, because the mean of its divisors is an integer number (59003138622).

Almost surely, 2^196677128735 is an apocalyptic number.

196677128735 is a deficient number, since it is larger than the sum of its proper divisors (39335425753).

196677128735 is an equidigital number, since it uses as much as digits as its factorization.

196677128735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39335425752.

The product of its digits is 26671680, while the sum is 62.

The spelling of 196677128735 in words is "one hundred ninety-six billion, six hundred seventy-seven million, one hundred twenty-eight thousand, seven hundred thirty-five".