42060256397 has 2 divisors, whose sum is σ = 42060256398. Its totient is φ = 42060256396.

The previous prime is 42060256387. The next prime is 42060256417. The reversal of 42060256397 is 79365206024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23940135076 + 18120121321 = 154726^2 + 134611^2 .

It is a cyclic number.

It is not a de Polignac number, because 42060256397 - 2⁶ = 42060256333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42060256307) 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, 21030128198 + 21030128199.

It is an arithmetic number, because the mean of its divisors is an integer number (21030128199).

Almost surely, 2^42060256397 is an apocalyptic number.

It is an amenable number.

42060256397 is a deficient number, since it is larger than the sum of its proper divisors (1).

42060256397 is an equidigital number, since it uses as much as digits as its factorization.

42060256397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 42060256397 in words is "forty-two billion, sixty million, two hundred fifty-six thousand, three hundred ninety-seven".