11328438651 has 8 divisors (see below), whose sum is σ = 15107134224. Its totient is φ = 7551017760.

The previous prime is 11328438637. The next prime is 11328438689. The reversal of 11328438651 is 15683482311.

It is a happy number.

11328438651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11328438651 - 2⁶ = 11328438587 is a prime.

It is a super-3 number, since 3×11328438651³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11328438601) 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 7 ways as a sum of consecutive naturals, for example, 297736 + ... + 333621.

It is an arithmetic number, because the mean of its divisors is an integer number (1888391778).

Almost surely, 2^11328438651 is an apocalyptic number.

11328438651 is a deficient number, since it is larger than the sum of its proper divisors (3778695573).

11328438651 is an equidigital number, since it uses as much as digits as its factorization.

11328438651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637341.

The product of its digits is 138240, while the sum is 42.

The spelling of 11328438651 in words is "eleven billion, three hundred twenty-eight million, four hundred thirty-eight thousand, six hundred fifty-one".