400682845559 has 2 divisors, whose sum is σ = 400682845560. Its totient is φ = 400682845558.

The previous prime is 400682845481. The next prime is 400682845627. The reversal of 400682845559 is 955548286004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400682845559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400682845259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200341422779 + 200341422780.

It is an arithmetic number, because the mean of its divisors is an integer number (200341422780).

Almost surely, 2^400682845559 is an apocalyptic number.

400682845559 is a deficient number, since it is larger than the sum of its proper divisors (1).

400682845559 is an equidigital number, since it uses as much as digits as its factorization.

400682845559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824000, while the sum is 56.

The spelling of 400682845559 in words is "four hundred billion, six hundred eighty-two million, eight hundred forty-five thousand, five hundred fifty-nine".