8722531611887 has 4 divisors (see below), whose sum is σ = 8726182736760. Its totient is φ = 8718880487016.

The previous prime is 8722531611841. The next prime is 8722531611929. The reversal of 8722531611887 is 7881161352278.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8722531611887 - 2⁸ = 8722531611631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722531611187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1825558853 + ... + 1825563630.

It is an arithmetic number, because the mean of its divisors is an integer number (2181545684190).

Almost surely, 2^{8722531611887} is an apocalyptic number.

8722531611887 is a deficient number, since it is larger than the sum of its proper divisors (3651124873).

8722531611887 is a wasteful number, since it uses less digits than its factorization.

8722531611887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651124872.

The product of its digits is 9031680, while the sum is 59.

The spelling of 8722531611887 in words is "eight trillion, seven hundred twenty-two billion, five hundred thirty-one million, six hundred eleven thousand, eight hundred eighty-seven".