197729334989823 has 32 divisors (see below), whose sum is σ = 334945970286592. Its totient is φ = 100932379430400.

The previous prime is 197729334989677. The next prime is 197729334989843. The reversal of 197729334989823 is 328989433927791.

It is not a de Polignac number, because 197729334989823 - 2⁸ = 197729334989567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197729334989843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11681979898 + ... + 11681996823.

It is an arithmetic number, because the mean of its divisors is an integer number (10467061571456).

Almost surely, 2^{197729334989823} is an apocalyptic number.

197729334989823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

197729334989823 is a deficient number, since it is larger than the sum of its proper divisors (137216635296769).

197729334989823 is a wasteful number, since it uses less digits than its factorization.

197729334989823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23363976775.

The product of its digits is 8888527872, while the sum is 84.

The spelling of 197729334989823 in words is "one hundred ninety-seven trillion, seven hundred twenty-nine billion, three hundred thirty-four million, nine hundred eighty-nine thousand, eight hundred twenty-three".