998438283005 has 16 divisors (see below), whose sum is σ = 1218373650048. Its totient is φ = 785265192000.

The previous prime is 998438282987. The next prime is 998438283047. The reversal of 998438283005 is 500382834899.

It is not a de Polignac number, because 998438283005 - 2³⁸ = 723560376061 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 200561 + ... + 1427270.

It is an arithmetic number, because the mean of its divisors is an integer number (76148353128).

Almost surely, 2^998438283005 is an apocalyptic number.

It is an amenable number.

998438283005 is a deficient number, since it is larger than the sum of its proper divisors (219935367043).

998438283005 is a wasteful number, since it uses less digits than its factorization.

998438283005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629908.

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 998438283005 in words is "nine hundred ninety-eight billion, four hundred thirty-eight million, two hundred eighty-three thousand, five".