400865801143 has 2 divisors, whose sum is σ = 400865801144. Its totient is φ = 400865801142.

The previous prime is 400865801069. The next prime is 400865801207. The reversal of 400865801143 is 341108568004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400865801143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400865801096 and 400865801105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400865801243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200432900571 + 200432900572.

It is an arithmetic number, because the mean of its divisors is an integer number (200432900572).

Almost surely, 2^400865801143 is an apocalyptic number.

400865801143 is a deficient number, since it is larger than the sum of its proper divisors (1).

400865801143 is an equidigital number, since it uses as much as digits as its factorization.

400865801143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 400865801143 in words is "four hundred billion, eight hundred sixty-five million, eight hundred one thousand, one hundred forty-three".