998479617133 has 8 divisors (see below), whose sum is σ = 999848347040. Its totient is φ = 997111142640.

The previous prime is 998479617043. The next prime is 998479617169. The reversal of 998479617133 is 331716974899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998479617133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998479617173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8551003 + ... + 8666983.

It is an arithmetic number, because the mean of its divisors is an integer number (124981043380).

Almost surely, 2^998479617133 is an apocalyptic number.

It is an amenable number.

998479617133 is a deficient number, since it is larger than the sum of its proper divisors (1368729907).

998479617133 is a wasteful number, since it uses less digits than its factorization.

998479617133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127707.

The product of its digits is 61725888, while the sum is 67.

The spelling of 998479617133 in words is "nine hundred ninety-eight billion, four hundred seventy-nine million, six hundred seventeen thousand, one hundred thirty-three".