42342540642379 has 2 divisors, whose sum is σ = 42342540642380. Its totient is φ = 42342540642378.

The previous prime is 42342540642377. The next prime is 42342540642439. The reversal of 42342540642379 is 97324604524324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42342540642379 - 2¹ = 42342540642377 is a prime.

Together with 42342540642377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42342540642377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21171270321189 + 21171270321190.

It is an arithmetic number, because the mean of its divisors is an integer number (21171270321190).

Almost surely, 2^{42342540642379} is an apocalyptic number.

42342540642379 is a deficient number, since it is larger than the sum of its proper divisors (1).

42342540642379 is an equidigital number, since it uses as much as digits as its factorization.

42342540642379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34836480, while the sum is 55.

The spelling of 42342540642379 in words is "forty-two trillion, three hundred forty-two billion, five hundred forty million, six hundred forty-two thousand, three hundred seventy-nine".