400847717911 has 2 divisors, whose sum is σ = 400847717912. Its totient is φ = 400847717910.

The previous prime is 400847717873. The next prime is 400847717939. The reversal of 400847717911 is 119717748004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400847717911 - 2¹³ = 400847709719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400847717981) 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, 200423858955 + 200423858956.

It is an arithmetic number, because the mean of its divisors is an integer number (200423858956).

Almost surely, 2^400847717911 is an apocalyptic number.

400847717911 is a deficient number, since it is larger than the sum of its proper divisors (1).

400847717911 is an equidigital number, since it uses as much as digits as its factorization.

400847717911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 49.

The spelling of 400847717911 in words is "four hundred billion, eight hundred forty-seven million, seven hundred seventeen thousand, nine hundred eleven".