42050809247 has 2 divisors, whose sum is σ = 42050809248. Its totient is φ = 42050809246.

The previous prime is 42050809217. The next prime is 42050809369. The reversal of 42050809247 is 74290805024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42050809247 - 2⁸ = 42050808991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42050809217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21025404623 + 21025404624.

It is an arithmetic number, because the mean of its divisors is an integer number (21025404624).

Almost surely, 2^42050809247 is an apocalyptic number.

42050809247 is a deficient number, since it is larger than the sum of its proper divisors (1).

42050809247 is an equidigital number, since it uses as much as digits as its factorization.

42050809247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 42050809247 in words is "forty-two billion, fifty million, eight hundred nine thousand, two hundred forty-seven".