11573356872 has 128 divisors (see below), whose sum is σ = 36753730560. Its totient is φ = 2949323520.

The previous prime is 11573356811. The next prime is 11573356889. The reversal of 11573356872 is 27865337511.

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, 38863 + ... + 157025.

It is an arithmetic number, because the mean of its divisors is an integer number (287138520).

Almost surely, 2^11573356872 is an apocalyptic number.

11573356872 is a gapful number since it is divisible by the number (12) 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 11573356872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18376865280).

11573356872 is an abundant number, since it is smaller than the sum of its proper divisors (25180373688).

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

11573356872 is a wasteful number, since it uses less digits than its factorization.

11573356872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118243 (or 118239 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The spelling of 11573356872 in words is "eleven billion, five hundred seventy-three million, three hundred fifty-six thousand, eight hundred seventy-two".