400631206886 has 16 divisors (see below), whose sum is σ = 632955159360. Its totient is φ = 189658806120.

The previous prime is 400631206861. The next prime is 400631206897. The reversal of 400631206886 is 688602136004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3098900 + ... + 3225591.

It is an arithmetic number, because the mean of its divisors is an integer number (39559697460).

Almost surely, 2^400631206886 is an apocalyptic number.

400631206886 is a deficient number, since it is larger than the sum of its proper divisors (232323952474).

400631206886 is a wasteful number, since it uses less digits than its factorization.

400631206886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6326179.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 400631206886 in words is "four hundred billion, six hundred thirty-one million, two hundred six thousand, eight hundred eighty-six".