98790681888 has 144 divisors (see below), whose sum is σ = 292213303200. Its totient is φ = 32831640576.

The previous prime is 98790681881. The next prime is 98790681893. The reversal of 98790681888 is 88818609789.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×98790681888² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (98790681881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2601663 + ... + 2639361.

It is an arithmetic number, because the mean of its divisors is an integer number (2029259050).

Almost surely, 2^98790681888 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 98790681888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146106651600).

98790681888 is an abundant number, since it is smaller than the sum of its proper divisors (193422621312).

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

98790681888 is a wasteful number, since it uses less digits than its factorization.

98790681888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38061 (or 38041 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 72.

The spelling of 98790681888 in words is "ninety-eight billion, seven hundred ninety million, six hundred eighty-one thousand, eight hundred eighty-eight".