5188552744921 has 72 divisors (see below), whose sum is σ = 6769370926080. Its totient is φ = 3941460855360.

The previous prime is 5188552744883. The next prime is 5188552744931. The reversal of 5188552744921 is 1294472558815.

It is not a de Polignac number, because 5188552744921 - 2¹¹ = 5188552742873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5188552744921.

It is not an unprimeable number, because it can be changed into a prime (5188552744931) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 77710570 + ... + 77777308.

It is an arithmetic number, because the mean of its divisors is an integer number (94019040640).

Almost surely, 2^{5188552744921} is an apocalyptic number.

It is an amenable number.

5188552744921 is a deficient number, since it is larger than the sum of its proper divisors (1580818181159).

5188552744921 is a wasteful number, since it uses less digits than its factorization.

5188552744921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66955 (or 66917 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 61.

The spelling of 5188552744921 in words is "five trillion, one hundred eighty-eight billion, five hundred fifty-two million, seven hundred forty-four thousand, nine hundred twenty-one".