11880186368 has 30 divisors (see below), whose sum is σ = 23742098061. Its totient is φ = 5938860032.

The previous prime is 11880186361. The next prime is 11880186379. The reversal of 11880186368 is 86368108811.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 9360949504 + 2519236864 = 96752^2 + 50192^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=77072.

It is a super-2 number, since 2×11880186368² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11880186361) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2463896 + ... + 2468712.

Almost surely, 2^11880186368 is an apocalyptic number.

It is an amenable number.

11880186368 is a deficient number, since it is larger than the sum of its proper divisors (11861911693).

11880186368 is an frugal number, since it uses more digits than its factorization.

11880186368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9652 (or 4819 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 50.

Multiplying 11880186368 by its sum of digits (50), we get a square (594009318400 = 770720²).

The spelling of 11880186368 in words is "eleven billion, eight hundred eighty million, one hundred eighty-six thousand, three hundred sixty-eight".