11235611728 has 160 divisors (see below), whose sum is σ = 25430372352. Its totient is φ = 4760985600.

The previous prime is 11235611713. The next prime is 11235611741. The reversal of 11235611728 is 82711653211.

It is a super-2 number, since 2×11235611728² (a number of 21 digits) contains 22 as substring.

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, 19472176 + ... + 19472752.

Almost surely, 2^11235611728 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 11235611728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12715186176).

11235611728 is an abundant number, since it is smaller than the sum of its proper divisors (14194760624).

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

11235611728 is a wasteful number, since it uses less digits than its factorization.

11235611728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 747 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The spelling of 11235611728 in words is "eleven billion, two hundred thirty-five million, six hundred eleven thousand, seven hundred twenty-eight".