872544828712105 has 32 divisors (see below), whose sum is σ = 1097403936217344. Its totient is φ = 664737285881856.

The previous prime is 872544828712099. The next prime is 872544828712111. The reversal of 872544828712105 is 501217828445278.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (872544828712099) and next prime (872544828712111).

It is a cyclic number.

It is not a de Polignac number, because 872544828712105 - 2³ = 872544828712097 is a prime.

It is a super-2 number, since 2×872544828712105² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3220621129 + ... + 3220892041.

It is an arithmetic number, because the mean of its divisors is an integer number (34293873006792).

Almost surely, 2^{872544828712105} is an apocalyptic number.

It is an amenable number.

872544828712105 is a deficient number, since it is larger than the sum of its proper divisors (224859107505239).

872544828712105 is a wasteful number, since it uses less digits than its factorization.

872544828712105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394545.

The product of its (nonzero) digits is 80281600, while the sum is 64.

The spelling of 872544828712105 in words is "eight hundred seventy-two trillion, five hundred forty-four billion, eight hundred twenty-eight million, seven hundred twelve thousand, one hundred five".