11349728180 has 48 divisors (see below), whose sum is σ = 27343008000. Its totient is φ = 3876526848.

The previous prime is 11349728171. The next prime is 11349728197. The reversal of 11349728180 is 8182794311.

It is a super-2 number, since 2×11349728180² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117305 + ... + 190944.

It is an arithmetic number, because the mean of its divisors is an integer number (569646000).

Almost surely, 2^11349728180 is an apocalyptic number.

11349728180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11349728180 is an abundant number, since it is smaller than the sum of its proper divisors (15993279820).

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

11349728180 is a wasteful number, since it uses less digits than its factorization.

11349728180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308528 (or 308526 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The spelling of 11349728180 in words is "eleven billion, three hundred forty-nine million, seven hundred twenty-eight thousand, one hundred eighty".