8103387520 has 128 divisors (see below), whose sum is σ = 20551449600. Its totient is φ = 3046717440.

The previous prime is 8103387517. The next prime is 8103387533. The reversal of 8103387520 is 257833018.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-3 number, since 3×8103387520³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8103387520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1590417 + ... + 1595503.

It is an arithmetic number, because the mean of its divisors is an integer number (160558200).

Almost surely, 2^8103387520 is an apocalyptic number.

8103387520 is a gapful number since it is divisible by the number (80) 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 8103387520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10275724800).

8103387520 is an abundant number, since it is smaller than the sum of its proper divisors (12448062080).

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

8103387520 is a wasteful number, since it uses less digits than its factorization.

8103387520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256 (or 5244 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 8103387520 is about 90018.8175883243. The cubic root of 8103387520 is about 2008.5787763516.

The spelling of 8103387520 in words is "eight billion, one hundred three million, three hundred eighty-seven thousand, five hundred twenty".