8639413212672 has 640 divisors, whose sum is σ = 29586236359680. Its totient is φ = 2460079226880.

The previous prime is 8639413212667. The next prime is 8639413212701. The reversal of 8639413212672 is 2762123149368.

8639413212672 is a `hidden beast` number, since 8 + 6 + 3 + 9 + 413 + 212 + 6 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1879356678 + ... + 1879361274.

It is an arithmetic number, because the mean of its divisors is an integer number (46228494312).

Almost surely, 2^{8639413212672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8639413212672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14793118179840).

8639413212672 is an abundant number, since it is smaller than the sum of its proper divisors (20946823147008).

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

8639413212672 is a wasteful number, since it uses less digits than its factorization.

8639413212672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379 (or 5357 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The spelling of 8639413212672 in words is "eight trillion, six hundred thirty-nine billion, four hundred thirteen million, two hundred twelve thousand, six hundred seventy-two".