42113622643 has 2 divisors, whose sum is σ = 42113622644. Its totient is φ = 42113622642.

The previous prime is 42113622641. The next prime is 42113622647. The reversal of 42113622643 is 34622631124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42113622643 - 2¹ = 42113622641 is a prime.

Together with 42113622641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42113622599 and 42113622608.

It is not a weakly prime, because it can be changed into another prime (42113622641) 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, 21056811321 + 21056811322.

It is an arithmetic number, because the mean of its divisors is an integer number (21056811322).

Almost surely, 2^42113622643 is an apocalyptic number.

42113622643 is a deficient number, since it is larger than the sum of its proper divisors (1).

42113622643 is an equidigital number, since it uses as much as digits as its factorization.

42113622643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 34.

The spelling of 42113622643 in words is "forty-two billion, one hundred thirteen million, six hundred twenty-two thousand, six hundred forty-three".