42403271497 has 2 divisors, whose sum is σ = 42403271498. Its totient is φ = 42403271496.

The previous prime is 42403271461. The next prime is 42403271551. The reversal of 42403271497 is 79417230424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42105398416 + 297873081 = 205196^2 + 17259^2 .

It is a cyclic number.

It is not a de Polignac number, because 42403271497 - 2⁷ = 42403271369 is a prime.

It is not a weakly prime, because it can be changed into another prime (42403271797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21201635748 + 21201635749.

It is an arithmetic number, because the mean of its divisors is an integer number (21201635749).

Almost surely, 2^42403271497 is an apocalyptic number.

It is an amenable number.

42403271497 is a deficient number, since it is larger than the sum of its proper divisors (1).

42403271497 is an equidigital number, since it uses as much as digits as its factorization.

42403271497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 42403271497 in words is "forty-two billion, four hundred three million, two hundred seventy-one thousand, four hundred ninety-seven".