499988881447 has 16 divisors (see below), whose sum is σ = 564506205984. Its totient is φ = 438877440000.

The previous prime is 499988881433. The next prime is 499988881451. The reversal of 499988881447 is 744188889994.

It is a cyclic number.

It is not a de Polignac number, because 499988881447 - 2⁷ = 499988881319 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 (499988881417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5670804 + ... + 5758297.

It is an arithmetic number, because the mean of its divisors is an integer number (35281637874).

Almost surely, 2^499988881447 is an apocalyptic number.

499988881447 is a deficient number, since it is larger than the sum of its proper divisors (64517324537).

499988881447 is a wasteful number, since it uses less digits than its factorization.

499988881447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11429250.

The product of its digits is 1337720832, while the sum is 79.

The spelling of 499988881447 in words is "four hundred ninety-nine billion, nine hundred eighty-eight million, eight hundred eighty-one thousand, four hundred forty-seven".