98992881540 has 480 divisors, whose sum is σ = 377368992000. Its totient is φ = 21219148800.

The previous prime is 98992881497. The next prime is 98992881553. The reversal of 98992881540 is 4518829989.

98992881540 is a `hidden beast` number, since 9 + 8 + 9 + 9 + 2 + 8 + 81 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 21759186 + ... + 21763734.

It is an arithmetic number, because the mean of its divisors is an integer number (786185400).

Almost surely, 2^98992881540 is an apocalyptic number.

98992881540 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98992881540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188684496000).

98992881540 is an abundant number, since it is smaller than the sum of its proper divisors (278376110460).

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

98992881540 is a wasteful number, since it uses less digits than its factorization.

98992881540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697 (or 4686 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 63.

The spelling of 98992881540 in words is "ninety-eight billion, nine hundred ninety-two million, eight hundred eighty-one thousand, five hundred forty".