8438488390468 has 24 divisors (see below), whose sum is σ = 15315845290200. Its totient is φ = 4063280621568.

The previous prime is 8438488390441. The next prime is 8438488390471. The reversal of 8438488390468 is 8640938848348.

It can be written as a sum of positive squares in 4 ways, for example, as 129612960324 + 8308875430144 = 360018^2 + 2882512^2 .

It is a hoax number, since the sum of its digits (73) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8438488390468.

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, 93458205 + ... + 93548452.

It is an arithmetic number, because the mean of its divisors is an integer number (638160220425).

Almost surely, 2^{8438488390468} is an apocalyptic number.

It is an amenable number.

8438488390468 is a deficient number, since it is larger than the sum of its proper divisors (6877356899732).

8438488390468 is a wasteful number, since it uses less digits than its factorization.

8438488390468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187007079 (or 187007077 counting only the distinct ones).

The product of its (nonzero) digits is 1019215872, while the sum is 73.

The spelling of 8438488390468 in words is "eight trillion, four hundred thirty-eight billion, four hundred eighty-eight million, three hundred ninety thousand, four hundred sixty-eight".