406563641268 has 24 divisors (see below), whose sum is σ = 948713237472. Its totient is φ = 135511965024.

The previous prime is 406563641221. The next prime is 406563641273. The reversal of 406563641268 is 862146365604.

It is a self number, because there is not a number n which added to its sum of digits gives 406563641268.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971755 + ... + 1325682.

It is an arithmetic number, because the mean of its divisors is an integer number (39529718228).

Almost surely, 2^406563641268 is an apocalyptic number.

It is an amenable number.

406563641268 is an abundant number, since it is smaller than the sum of its proper divisors (542149596204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406563641268 is a wasteful number, since it uses less digits than its factorization.

406563641268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312191 (or 2312189 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 406563641268 in words is "four hundred six billion, five hundred sixty-three million, six hundred forty-one thousand, two hundred sixty-eight".