998098701712391 has 8 divisors (see below), whose sum is σ = 1056832182174240. Its totient is φ = 939367642597888.

The previous prime is 998098701712367. The next prime is 998098701712423. The reversal of 998098701712391 is 193217107890899.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 998098701712391 - 2⁴⁶ = 927729957534727 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 (998098701712361) 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, 604488131 + ... + 606137028.

It is an arithmetic number, because the mean of its divisors is an integer number (132104022771780).

Almost surely, 2^{998098701712391} is an apocalyptic number.

998098701712391 is a deficient number, since it is larger than the sum of its proper divisors (58733480461849).

998098701712391 is a wasteful number, since it uses less digits than its factorization.

998098701712391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210673673.

The product of its (nonzero) digits is 123451776, while the sum is 74.

The spelling of 998098701712391 in words is "nine hundred ninety-eight trillion, ninety-eight billion, seven hundred one million, seven hundred twelve thousand, three hundred ninety-one".