42490073051 has 2 divisors, whose sum is σ = 42490073052. Its totient is φ = 42490073050.

The previous prime is 42490073033. The next prime is 42490073077. The reversal of 42490073051 is 15037009424.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42490073051 is a prime.

It is not a weakly prime, because it can be changed into another prime (42490073251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21245036525 + 21245036526.

It is an arithmetic number, because the mean of its divisors is an integer number (21245036526).

Almost surely, 2^42490073051 is an apocalyptic number.

42490073051 is a deficient number, since it is larger than the sum of its proper divisors (1).

42490073051 is an equidigital number, since it uses as much as digits as its factorization.

42490073051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 42490073051 in words is "forty-two billion, four hundred ninety million, seventy-three thousand, fifty-one".