11547868530 has 96 divisors (see below), whose sum is σ = 31206881664. Its totient is φ = 2731168000.

The previous prime is 11547868523. The next prime is 11547868537. The reversal of 11547868530 is 3586874511.

It is an interprime number because it is at equal distance from previous prime (11547868523) and next prime (11547868537).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11547868530.

It is not an unprimeable number, because it can be changed into a prime (11547868537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110035 + ... + 187625.

It is an arithmetic number, because the mean of its divisors is an integer number (325071684).

Almost surely, 2^11547868530 is an apocalyptic number.

11547868530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11547868530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15603440832).

11547868530 is an abundant number, since it is smaller than the sum of its proper divisors (19659013134).

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

11547868530 is a wasteful number, since it uses less digits than its factorization.

11547868530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77664 (or 77653 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 11547868530 in words is "eleven billion, five hundred forty-seven million, eight hundred sixty-eight thousand, five hundred thirty".