5019988124089 has 3 divisors (see below), whose sum is σ = 5019990364623. Its totient is φ = 5019985883556.

The previous prime is 5019988124033. The next prime is 5019988124153. The reversal of 5019988124089 is 9804218899105.

The square root of 5019988124089 is 2240533.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1853396346025 + 3166591778064 = 1361395^2 + 1779492^2 .

It is not a de Polignac number, because 5019988124089 - 2²⁵ = 5019954569657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5019988124089.

It is not an unprimeable number, because it can be changed into a prime (5019988124189) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1120267 + ... + 3360799.

It is an arithmetic number, because the mean of its divisors is an integer number (1673330121541).

Almost surely, 2^{5019988124089} is an apocalyptic number.

5019988124089 is the 2240533-rd square number.

5019988124089 is the 1120267-th centered octagonal number.

It is an amenable number.

5019988124089 is a deficient number, since it is larger than the sum of its proper divisors (2240534).

5019988124089 is an frugal number, since it uses more digits than its factorization.

5019988124089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481066 (or 2240533 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 64.

Multiplying 5019988124089 by its sum of digits (64), we get a square (321279239941696 = 17924264²).

The spelling of 5019988124089 in words is "five trillion, nineteen billion, nine hundred eighty-eight million, one hundred twenty-four thousand, eighty-nine".