42842663891323 has 2 divisors, whose sum is σ = 42842663891324. Its totient is φ = 42842663891322.

The previous prime is 42842663891311. The next prime is 42842663891353. The reversal of 42842663891323 is 32319836624824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42842663891323 - 2⁹ = 42842663890811 is a prime.

It is not a weakly prime, because it can be changed into another prime (42842663891353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21421331945661 + 21421331945662.

It is an arithmetic number, because the mean of its divisors is an integer number (21421331945662).

Almost surely, 2^{42842663891323} is an apocalyptic number.

42842663891323 is a deficient number, since it is larger than the sum of its proper divisors (1).

42842663891323 is an equidigital number, since it uses as much as digits as its factorization.

42842663891323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71663616, while the sum is 61.

The spelling of 42842663891323 in words is "forty-two trillion, eight hundred forty-two billion, six hundred sixty-three million, eight hundred ninety-one thousand, three hundred twenty-three".