8729643722976 has 240 divisors, whose sum is σ = 28973389238640. Its totient is φ = 2554127493120.

The previous prime is 8729643722971. The next prime is 8729643723019. The reversal of 8729643722976 is 6792273469278.

8729643722976 is a `hidden beast` number, since 8 + 7 + 296 + 43 + 7 + 2 + 297 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8729643722971) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4452021 + ... + 6105716.

It is an arithmetic number, because the mean of its divisors is an integer number (120722455161).

Almost surely, 2^{8729643722976} is an apocalyptic number.

It is an amenable number.

8729643722976 is an abundant number, since it is smaller than the sum of its proper divisors (20243745515664).

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

8729643722976 is a wasteful number, since it uses less digits than its factorization.

8729643722976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10557799 (or 10557782 counting only the distinct ones).

The product of its digits is 768144384, while the sum is 72.

The spelling of 8729643722976 in words is "eight trillion, seven hundred twenty-nine billion, six hundred forty-three million, seven hundred twenty-two thousand, nine hundred seventy-six".