538722168687 has 24 divisors (see below), whose sum is σ = 780058137456. Its totient is φ = 358269866496.

The previous prime is 538722168683. The next prime is 538722168739. The reversal of 538722168687 is 786861227835.

538722168687 is a `hidden beast` number, since 538 + 7 + 2 + 2 + 16 + 8 + 6 + 87 = 666.

It is not a de Polignac number, because 538722168687 - 2² = 538722168683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538722168683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15184533 + ... + 15219969.

It is an arithmetic number, because the mean of its divisors is an integer number (32502422394).

Almost surely, 2^538722168687 is an apocalyptic number.

538722168687 is a deficient number, since it is larger than the sum of its proper divisors (241335968769).

538722168687 is a wasteful number, since it uses less digits than its factorization.

538722168687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39527 (or 39524 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 538722168687 in words is "five hundred thirty-eight billion, seven hundred twenty-two million, one hundred sixty-eight thousand, six hundred eighty-seven".