499998999599 has 16 divisors (see below), whose sum is σ = 574220465280. Its totient is φ = 430576947360.

The previous prime is 499998999553. The next prime is 499998999607. The reversal of 499998999599 is 995999899994.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499998999599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499998959599) 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, 2006369 + ... + 2241765.

It is an arithmetic number, because the mean of its divisors is an integer number (35888779080).

Almost surely, 2^499998999599 is an apocalyptic number.

499998999599 is a deficient number, since it is larger than the sum of its proper divisors (74221465681).

499998999599 is a wasteful number, since it uses less digits than its factorization.

499998999599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245590.

The product of its digits is 61987278240, while the sum is 98.

The spelling of 499998999599 in words is "four hundred ninety-nine billion, nine hundred ninety-eight million, nine hundred ninety-nine thousand, five hundred ninety-nine".