42334201979 has 2 divisors, whose sum is σ = 42334201980. Its totient is φ = 42334201978.

The previous prime is 42334201969. The next prime is 42334201981. The reversal of 42334201979 is 97910243324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42334201979 is a prime.

It is a Sophie Germain prime.

Together with 42334201981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42334201919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21167100989 + 21167100990.

It is an arithmetic number, because the mean of its divisors is an integer number (21167100990).

Almost surely, 2^42334201979 is an apocalyptic number.

42334201979 is a deficient number, since it is larger than the sum of its proper divisors (1).

42334201979 is an equidigital number, since it uses as much as digits as its factorization.

42334201979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 42334201979 in words is "forty-two billion, three hundred thirty-four million, two hundred one thousand, nine hundred seventy-nine".