197792016077 has 4 divisors (see below), whose sum is σ = 198219213120. Its totient is φ = 197364819036.

The previous prime is 197792016047. The next prime is 197792016119. The reversal of 197792016077 is 770610297791.

197792016077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 770610297791 = 4877 ⋅158009083.

It is a cyclic number.

It is not a de Polignac number, because 197792016077 - 2²⁸ = 197523580621 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 (197792016047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213597827 + ... + 213598752.

It is an arithmetic number, because the mean of its divisors is an integer number (49554803280).

Almost surely, 2^197792016077 is an apocalyptic number.

It is an amenable number.

197792016077 is a deficient number, since it is larger than the sum of its proper divisors (427197043).

197792016077 is an equidigital number, since it uses as much as digits as its factorization.

197792016077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427197042.

The product of its (nonzero) digits is 2333772, while the sum is 56.

The spelling of 197792016077 in words is "one hundred ninety-seven billion, seven hundred ninety-two million, sixteen thousand, seventy-seven".