98881277440 has 480 divisors, whose sum is σ = 280368617760. Its totient is φ = 33316208640.

The previous prime is 98881277419. The next prime is 98881277491. The reversal of 98881277440 is 4477218889.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 311928162 + ... + 311928478.

It is an arithmetic number, because the mean of its divisors is an integer number (584101287).

Almost surely, 2^98881277440 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 98881277440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140184308880).

98881277440 is an abundant number, since it is smaller than the sum of its proper divisors (181487340320).

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

98881277440 is a wasteful number, since it uses less digits than its factorization.

98881277440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 58.

The spelling of 98881277440 in words is "ninety-eight billion, eight hundred eighty-one million, two hundred seventy-seven thousand, four hundred forty".