5287721899 has 4 divisors (see below), whose sum is σ = 5287905280. Its totient is φ = 5287538520.

The previous prime is 5287721897. The next prime is 5287721903. The reversal of 5287721899 is 9981277825.

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 5287721899 - 2¹ = 5287721897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5287721891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37932 + ... + 109609.

It is an arithmetic number, because the mean of its divisors is an integer number (1321976320).

Almost surely, 2^5287721899 is an apocalyptic number.

5287721899 is a deficient number, since it is larger than the sum of its proper divisors (183381).

5287721899 is a wasteful number, since it uses less digits than its factorization.

5287721899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183380.

The product of its digits is 5080320, while the sum is 58.

The square root of 5287721899 is about 72716.7236541911. The cubic root of 5287721899 is about 1742.1660059432.

The spelling of 5287721899 in words is "five billion, two hundred eighty-seven million, seven hundred twenty-one thousand, eight hundred ninety-nine".