499999636499902 has 64 divisors (see below), whose sum is σ = 935406607449600. Its totient is φ = 194733737902080.

The previous prime is 499999636499899. The next prime is 499999636499917. The reversal of 499999636499902 is 209994636999994.

It is a junction number, because it is equal to n+sod(n) for n = 499999636499795 and 499999636499804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12744344478 + ... + 12744383710.

It is an arithmetic number, because the mean of its divisors is an integer number (14615728241400).

Almost surely, 2^{499999636499902} is an apocalyptic number.

499999636499902 is a deficient number, since it is larger than the sum of its proper divisors (435406970949698).

499999636499902 is a wasteful number, since it uses less digits than its factorization.

499999636499902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67441.

The product of its (nonzero) digits is 148769467776, while the sum is 97.

The spelling of 499999636499902 in words is "four hundred ninety-nine trillion, nine hundred ninety-nine billion, six hundred thirty-six million, four hundred ninety-nine thousand, nine hundred two".