998073634173 has 96 divisors (see below), whose sum is σ = 1761219145728. Its totient is φ = 496579507200.

The previous prime is 998073634171. The next prime is 998073634199. The reversal of 998073634173 is 371436370899.

It is a happy number.

It is not a de Polignac number, because 998073634173 - 2¹ = 998073634171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998073634171) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4759686 + ... + 4964952.

It is an arithmetic number, because the mean of its divisors is an integer number (18346032768).

Almost surely, 2^998073634173 is an apocalyptic number.

998073634173 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

998073634173 is a deficient number, since it is larger than the sum of its proper divisors (763145511555).

998073634173 is a wasteful number, since it uses less digits than its factorization.

998073634173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205423 (or 205416 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 60.

The spelling of 998073634173 in words is "nine hundred ninety-eight billion, seventy-three million, six hundred thirty-four thousand, one hundred seventy-three".