10389899520 has 1728 divisors, whose sum is σ = 52069215744. Its totient is φ = 1840250880.

The previous prime is 10389899473. The next prime is 10389899539. The reversal of 10389899520 is 2599898301.

10389899520 is a `hidden beast` number, since 1 + 0 + 38 + 9 + 89 + 9 + 520 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 196035814 + ... + 196035866.

It is an arithmetic number, because the mean of its divisors is an integer number (30132648).

Almost surely, 2^10389899520 is an apocalyptic number.

10389899520 is a gapful number since it is divisible by the number (10) 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 10389899520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26034607872).

10389899520 is an abundant number, since it is smaller than the sum of its proper divisors (41679316224).

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

10389899520 is a wasteful number, since it uses less digits than its factorization.

10389899520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

It can be divided in two parts, 10389 and 899520, that added together give a palindrome (909909).

The spelling of 10389899520 in words is "ten billion, three hundred eighty-nine million, eight hundred ninety-nine thousand, five hundred twenty".