40234245563 has 2 divisors, whose sum is σ = 40234245564. Its totient is φ = 40234245562.

The previous prime is 40234245523. The next prime is 40234245581. The reversal of 40234245563 is 36554243204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40234245563 is a prime.

It is not a weakly prime, because it can be changed into another prime (40234245523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20117122781 + 20117122782.

It is an arithmetic number, because the mean of its divisors is an integer number (20117122782).

Almost surely, 2^40234245563 is an apocalyptic number.

40234245563 is a deficient number, since it is larger than the sum of its proper divisors (1).

40234245563 is an equidigital number, since it uses as much as digits as its factorization.

40234245563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 40234245563 its reverse (36554243204), we get a palindrome (76788488767).

The spelling of 40234245563 in words is "forty billion, two hundred thirty-four million, two hundred forty-five thousand, five hundred sixty-three".