499998999903 has 16 divisors (see below), whose sum is σ = 755733982080. Its totient is φ = 291497392224.

The previous prime is 499998999853. The next prime is 499998999923. The reversal of 499998999903 is 309999899994.

It is not a de Polignac number, because 499998999903 - 2⁶ = 499998999839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499998999903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499998999923) 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, 337380501 + ... + 337381982.

It is an arithmetic number, because the mean of its divisors is an integer number (47233373880).

Almost surely, 2^499998999903 is an apocalyptic number.

499998999903 is a deficient number, since it is larger than the sum of its proper divisors (255734982177).

499998999903 is a wasteful number, since it uses less digits than its factorization.

499998999903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674762518.

The product of its (nonzero) digits is 4132485216, while the sum is 87.

The spelling of 499998999903 in words is "four hundred ninety-nine billion, nine hundred ninety-eight million, nine hundred ninety-nine thousand, nine hundred three".