400026857473 has 2 divisors, whose sum is σ = 400026857474. Its totient is φ = 400026857472.

The previous prime is 400026857411. The next prime is 400026857507. The reversal of 400026857473 is 374758620004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 389904082929 + 10122774544 = 624423^2 + 100612^2 .

It is a cyclic number.

It is not a de Polignac number, because 400026857473 - 2⁹ = 400026856961 is a prime.

It is not a weakly prime, because it can be changed into another prime (400026857273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200013428736 + 200013428737.

It is an arithmetic number, because the mean of its divisors is an integer number (200013428737).

Almost surely, 2^400026857473 is an apocalyptic number.

It is an amenable number.

400026857473 is a deficient number, since it is larger than the sum of its proper divisors (1).

400026857473 is an equidigital number, since it uses as much as digits as its factorization.

400026857473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 400026857473 in words is "four hundred billion, twenty-six million, eight hundred fifty-seven thousand, four hundred seventy-three".