197942333379673 has 2 divisors, whose sum is σ = 197942333379674. Its totient is φ = 197942333379672.

The previous prime is 197942333379541. The next prime is 197942333379781. The reversal of 197942333379673 is 376973333249791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193309731466569 + 4632601913104 = 13903587^2 + 2152348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197942333379673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197942333379673.

It is not a weakly prime, because it can be changed into another prime (197942333377673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98971166689836 + 98971166689837.

It is an arithmetic number, because the mean of its divisors is an integer number (98971166689837).

Almost surely, 2^{197942333379673} is an apocalyptic number.

It is an amenable number.

197942333379673 is a deficient number, since it is larger than the sum of its proper divisors (1).

197942333379673 is an equidigital number, since it uses as much as digits as its factorization.

197942333379673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916548208, while the sum is 76.

The spelling of 197942333379673 in words is "one hundred ninety-seven trillion, nine hundred forty-two billion, three hundred thirty-three million, three hundred seventy-nine thousand, six hundred seventy-three".