998346438068 has 48 divisors (see below), whose sum is σ = 2158586935680. Its totient is φ = 394388424576.

The previous prime is 998346438053. The next prime is 998346438083. The reversal of 998346438068 is 860834643899.

998346438068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (998346438053) and next prime (998346438083).

It is a super-2 number, since 2×998346438068² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 998346437989 and 998346438007.

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, 25339655 + ... + 25379022.

It is an arithmetic number, because the mean of its divisors is an integer number (44970561160).

Almost surely, 2^998346438068 is an apocalyptic number.

It is an amenable number.

998346438068 is an abundant number, since it is smaller than the sum of its proper divisors (1160240497612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998346438068 is a wasteful number, since it uses less digits than its factorization.

998346438068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50718744 (or 50718742 counting only the distinct ones).

The product of its (nonzero) digits is 214990848, while the sum is 68.

The spelling of 998346438068 in words is "nine hundred ninety-eight billion, three hundred forty-six million, four hundred thirty-eight thousand, sixty-eight".