402441935804947 has 2 divisors, whose sum is σ = 402441935804948. Its totient is φ = 402441935804946.

The previous prime is 402441935804927. The next prime is 402441935804989. The reversal of 402441935804947 is 749408539144204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402441935804947 - 2¹¹ = 402441935802899 is a prime.

It is not a weakly prime, because it can be changed into another prime (402441935804927) 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, 201220967902473 + 201220967902474.

It is an arithmetic number, because the mean of its divisors is an integer number (201220967902474).

Almost surely, 2^{402441935804947} is an apocalyptic number.

402441935804947 is a deficient number, since it is larger than the sum of its proper divisors (1).

402441935804947 is an equidigital number, since it uses as much as digits as its factorization.

402441935804947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139345920, while the sum is 64.

The spelling of 402441935804947 in words is "four hundred two trillion, four hundred forty-one billion, nine hundred thirty-five million, eight hundred four thousand, nine hundred forty-seven".