9887245020 has 96 divisors (see below), whose sum is σ = 30944793600. Its totient is φ = 2620786752.

The previous prime is 9887245009. The next prime is 9887245051. The reversal of 9887245020 is 205427889.

9887245020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9887245020² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35361 + ... + 144999.

It is an arithmetic number, because the mean of its divisors is an integer number (322341600).

Almost surely, 2^9887245020 is an apocalyptic number.

9887245020 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 9887245020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15472396800).

9887245020 is an abundant number, since it is smaller than the sum of its proper divisors (21057548580).

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

9887245020 is a wasteful number, since it uses less digits than its factorization.

9887245020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109824 (or 109816 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 9887245020 is about 99434.6268660973. The cubic root of 9887245020 is about 2146.3066223677.

The spelling of 9887245020 in words is "nine billion, eight hundred eighty-seven million, two hundred forty-five thousand, twenty".