42842552641393 has 2 divisors, whose sum is σ = 42842552641394. Its totient is φ = 42842552641392.

The previous prime is 42842552641373. The next prime is 42842552641397. The reversal of 42842552641393 is 39314625524824.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28496464651264 + 14346087990129 = 5338208^2 + 3787623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42842552641393 is a prime.

It is not a weakly prime, because it can be changed into another prime (42842552641397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21421276320696 + 21421276320697.

It is an arithmetic number, because the mean of its divisors is an integer number (21421276320697).

Almost surely, 2^{42842552641393} is an apocalyptic number.

It is an amenable number.

42842552641393 is a deficient number, since it is larger than the sum of its proper divisors (1).

42842552641393 is an equidigital number, since it uses as much as digits as its factorization.

42842552641393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49766400, while the sum is 58.

The spelling of 42842552641393 in words is "forty-two trillion, eight hundred forty-two billion, five hundred fifty-two million, six hundred forty-one thousand, three hundred ninety-three".