8672720123841 has 16 divisors (see below), whose sum is σ = 11653295480640. Its totient is φ = 5736989672960.

The previous prime is 8672720123831. The next prime is 8672720123849. The reversal of 8672720123841 is 1483210272768.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8672720123841 - 2³¹ = 8670572640193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8672720123849) 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, 1970581 + ... + 4607453.

It is an arithmetic number, because the mean of its divisors is an integer number (728330967540).

Almost surely, 2^{8672720123841} is an apocalyptic number.

It is an amenable number.

8672720123841 is a deficient number, since it is larger than the sum of its proper divisors (2980575356799).

8672720123841 is a wasteful number, since it uses less digits than its factorization.

8672720123841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645376.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 8672720123841 in words is "eight trillion, six hundred seventy-two billion, seven hundred twenty million, one hundred twenty-three thousand, eight hundred forty-one".