9873026520 has 128 divisors (see below), whose sum is σ = 33942205440. Its totient is φ = 2250570240.

The previous prime is 9873026503. The next prime is 9873026531. The reversal of 9873026520 is 256203789.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297565 + ... + 329075.

It is an arithmetic number, because the mean of its divisors is an integer number (265173480).

Almost surely, 2^9873026520 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 9873026520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16971102720).

9873026520 is an abundant number, since it is smaller than the sum of its proper divisors (24069178920).

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

9873026520 is a wasteful number, since it uses less digits than its factorization.

9873026520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31905 (or 31901 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 9873026520 is about 99363.1044201015. The cubic root of 9873026520 is about 2145.2772860545.

It can be divided in two parts, 98730 and 26520, that added together give a triangular number (125250 = T₅₀₀).

The spelling of 9873026520 in words is "nine billion, eight hundred seventy-three million, twenty-six thousand, five hundred twenty".