872611872543 has 12 divisors (see below), whose sum is σ = 1260484597008. Its totient is φ = 581720375040.

The previous prime is 872611872529. The next prime is 872611872547. The reversal of 872611872543 is 345278116278.

872611872543 is a `hidden beast` number, since 8 + 7 + 2 + 6 + 11 + 87 + 2 + 543 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-872611872543 is a prime.

It is a super-2 number, since 2×872611872543² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 872611872543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872611872547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1472523 + ... + 1978268.

It is an arithmetic number, because the mean of its divisors is an integer number (105040383084).

Almost surely, 2^872611872543 is an apocalyptic number.

872611872543 is a deficient number, since it is larger than the sum of its proper divisors (387872724465).

872611872543 is a wasteful number, since it uses less digits than its factorization.

872611872543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478894 (or 3478891 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 872611872543 in words is "eight hundred seventy-two billion, six hundred eleven million, eight hundred seventy-two thousand, five hundred forty-three".