11626721010 has 24 divisors (see below), whose sum is σ = 30229474860. Its totient is φ = 3100458912.

The previous prime is 11626721009. The next prime is 11626721017. The reversal of 11626721010 is 1012762611.

It is a happy number.

11626721010 is a `hidden beast` number, since 1 + 1 + 626 + 7 + 21 + 0 + 10 = 666.

11626721010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11340333081 + 286387929 = 106491^2 + 16923^2 .

It is not an unprimeable number, because it can be changed into a prime (11626721017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64592805 + ... + 64592984.

Almost surely, 2^11626721010 is an apocalyptic number.

11626721010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11626721010 is an abundant number, since it is smaller than the sum of its proper divisors (18602753850).

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

11626721010 is a wasteful number, since it uses less digits than its factorization.

11626721010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129185802 (or 129185799 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The spelling of 11626721010 in words is "eleven billion, six hundred twenty-six million, seven hundred twenty-one thousand, ten".