400562889508 has 6 divisors (see below), whose sum is σ = 700985056646. Its totient is φ = 200281444752.

The previous prime is 400562889431. The next prime is 400562889527. The reversal of 400562889508 is 805988265004.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 282802731264 + 117760158244 = 531792^2 + 343162^2 .

It is an unprimeable number.

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, 50070361185 + ... + 50070361192.

Almost surely, 2^400562889508 is an apocalyptic number.

It is an amenable number.

400562889508 is a deficient number, since it is larger than the sum of its proper divisors (300422167138).

400562889508 is a wasteful number, since it uses less digits than its factorization.

400562889508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100140722381 (or 100140722379 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 55.

The spelling of 400562889508 in words is "four hundred billion, five hundred sixty-two million, eight hundred eighty-nine thousand, five hundred eight".