98431644866880 has 448 divisors, whose sum is σ = 344723467511808. Its totient is φ = 23642768056320.

The previous prime is 98431644866879. The next prime is 98431644866987. The reversal of 98431644866880 is 8866844613489.

It is a super-2 number, since 2×98431644866880² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 553186887 + ... + 553364793.

It is an arithmetic number, because the mean of its divisors is an integer number (769472025696).

Almost surely, 2^{98431644866880} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98431644866880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172361733755904).

98431644866880 is an abundant number, since it is smaller than the sum of its proper divisors (246291822644928).

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

98431644866880 is a wasteful number, since it uses less digits than its factorization.

98431644866880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179014 (or 179004 counting only the distinct ones).

The product of its (nonzero) digits is 1528823808, while the sum is 75.

The spelling of 98431644866880 in words is "ninety-eight trillion, four hundred thirty-one billion, six hundred forty-four million, eight hundred sixty-six thousand, eight hundred eighty".