42245426347 has 2 divisors, whose sum is σ = 42245426348. Its totient is φ = 42245426346.

The previous prime is 42245426263. The next prime is 42245426381. The reversal of 42245426347 is 74362454224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42245426347 - 2⁷ = 42245426219 is a prime.

It is not a weakly prime, because it can be changed into another prime (42245426647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21122713173 + 21122713174.

It is an arithmetic number, because the mean of its divisors is an integer number (21122713174).

Almost surely, 2^42245426347 is an apocalyptic number.

42245426347 is a deficient number, since it is larger than the sum of its proper divisors (1).

42245426347 is an equidigital number, since it uses as much as digits as its factorization.

42245426347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 43.

The spelling of 42245426347 in words is "forty-two billion, two hundred forty-five million, four hundred twenty-six thousand, three hundred forty-seven".