2042404662197 has 2 divisors, whose sum is σ = 2042404662198. Its totient is φ = 2042404662196.

The previous prime is 2042404662187. The next prime is 2042404662209. The reversal of 2042404662197 is 7912664042402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1376693902276 + 665710759921 = 1173326^2 + 815911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2042404662197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042404662157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021202331098 + 1021202331099.

It is an arithmetic number, because the mean of its divisors is an integer number (1021202331099).

Almost surely, 2^{2042404662197} is an apocalyptic number.

It is an amenable number.

2042404662197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042404662197 is an equidigital number, since it uses as much as digits as its factorization.

2042404662197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 2042404662197 in words is "two trillion, forty-two billion, four hundred four million, six hundred sixty-two thousand, one hundred ninety-seven".