11649501882 has 48 divisors (see below), whose sum is σ = 26638709760. Its totient is φ = 3669143616.

The previous prime is 11649501839. The next prime is 11649501883. The reversal of 11649501882 is 28810594611.

It is a happy number.

11649501882 is a `hidden beast` number, since 1 + 1 + 64 + 9 + 501 + 8 + 82 = 666.

It is not an unprimeable number, because it can be changed into a prime (11649501883) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 86518 + ... + 175454.

It is an arithmetic number, because the mean of its divisors is an integer number (554973120).

Almost surely, 2^11649501882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11649501882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13319354880).

11649501882 is an abundant number, since it is smaller than the sum of its proper divisors (14989207878).

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

11649501882 is a wasteful number, since it uses less digits than its factorization.

11649501882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89347 (or 89344 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 11649501882 in words is "eleven billion, six hundred forty-nine million, five hundred one thousand, eight hundred eighty-two".