400827726868 has 24 divisors (see below), whose sum is σ = 705384059744. Its totient is φ = 199289613600.

The previous prime is 400827726853. The next prime is 400827726941. The reversal of 400827726868 is 868627728004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15761083 + ... + 15786493.

Almost surely, 2^400827726868 is an apocalyptic number.

It is an amenable number.

400827726868 is a deficient number, since it is larger than the sum of its proper divisors (304556332876).

400827726868 is a wasteful number, since it uses less digits than its factorization.

400827726868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47383 (or 47381 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 58.

The spelling of 400827726868 in words is "four hundred billion, eight hundred twenty-seven million, seven hundred twenty-six thousand, eight hundred sixty-eight".