400407942163 has 2 divisors, whose sum is σ = 400407942164. Its totient is φ = 400407942162.

The previous prime is 400407942097. The next prime is 400407942167. The reversal of 400407942163 is 361249704004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400407942163 is a prime.

It is not a weakly prime, because it can be changed into another prime (400407942167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200203971081 + 200203971082.

It is an arithmetic number, because the mean of its divisors is an integer number (200203971082).

Almost surely, 2^400407942163 is an apocalyptic number.

400407942163 is a deficient number, since it is larger than the sum of its proper divisors (1).

400407942163 is an equidigital number, since it uses as much as digits as its factorization.

400407942163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 400407942163 in words is "four hundred billion, four hundred seven million, nine hundred forty-two thousand, one hundred sixty-three".