42142341434491 has 2 divisors, whose sum is σ = 42142341434492. Its totient is φ = 42142341434490.

The previous prime is 42142341434423. The next prime is 42142341434497. The reversal of 42142341434491 is 19443414324124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42142341434491 - 2⁷ = 42142341434363 is a prime.

It is not a weakly prime, because it can be changed into another prime (42142341434497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071170717245 + 21071170717246.

It is an arithmetic number, because the mean of its divisors is an integer number (21071170717246).

Almost surely, 2^{42142341434491} is an apocalyptic number.

42142341434491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42142341434491 is an equidigital number, since it uses as much as digits as its factorization.

42142341434491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 46.

The spelling of 42142341434491 in words is "forty-two trillion, one hundred forty-two billion, three hundred forty-one million, four hundred thirty-four thousand, four hundred ninety-one".