8636172105672 has 112 divisors (see below), whose sum is σ = 24316613858880. Its totient is φ = 2874160648800.

The previous prime is 8636172105653. The next prime is 8636172105689. The reversal of 8636172105672 is 2765012716368.

8636172105672 is a `hidden beast` number, since 8 + 6 + 3 + 6 + 1 + 72 + 1 + 0 + 567 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2506597 + ... + 4853387.

It is an arithmetic number, because the mean of its divisors is an integer number (217112623740).

Almost surely, 2^{8636172105672} 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 8636172105672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12158306929440).

8636172105672 is an abundant number, since it is smaller than the sum of its proper divisors (15680441753208).

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

8636172105672 is a wasteful number, since it uses less digits than its factorization.

8636172105672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347446 (or 2347427 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 8636172105672 in words is "eight trillion, six hundred thirty-six billion, one hundred seventy-two million, one hundred five thousand, six hundred seventy-two".