499998899995 has 16 divisors (see below), whose sum is σ = 692781985728. Its totient is φ = 339321784320.

The previous prime is 499998899989. The next prime is 499998900067. The reversal of 499998899995 is 599998899994.

It is not a de Polignac number, because 499998899995 - 2⁷ = 499998899867 is a prime.

It is a super-2 number, since 2×499998899995² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (97).

It is a junction number, because it is equal to n+sod(n) for n = 499998899897 and 499998899906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73634146 + ... + 73640935.

It is an arithmetic number, because the mean of its divisors is an integer number (43298874108).

Almost surely, 2^499998899995 is an apocalyptic number.

499998899995 is a deficient number, since it is larger than the sum of its proper divisors (192783085733).

499998899995 is a wasteful number, since it uses less digits than its factorization.

499998899995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147275190.

The product of its digits is 55099802880, while the sum is 97.

Subtracting 499998899995 from its reverse (599998899994), we obtain a palindrome (99999999999).

The spelling of 499998899995 in words is "four hundred ninety-nine billion, nine hundred ninety-eight million, eight hundred ninety-nine thousand, nine hundred ninety-five".