8856641575479 has 16 divisors (see below), whose sum is σ = 12060308302848. Its totient is φ = 5778705462432.

The previous prime is 8856641575471. The next prime is 8856641575489. The reversal of 8856641575479 is 9745751466588.

It is a happy number.

It is not a de Polignac number, because 8856641575479 - 2³ = 8856641575471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8856641575479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8856641575471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8538774 + ... + 9519660.

It is an arithmetic number, because the mean of its divisors is an integer number (753769268928).

Almost surely, 2^{8856641575479} is an apocalyptic number.

8856641575479 is a deficient number, since it is larger than the sum of its proper divisors (3203666727369).

8856641575479 is a wasteful number, since it uses less digits than its factorization.

8856641575479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044974.

The product of its digits is 2032128000, while the sum is 75.

The spelling of 8856641575479 in words is "eight trillion, eight hundred fifty-six billion, six hundred forty-one million, five hundred seventy-five thousand, four hundred seventy-nine".