11138607968 has 24 divisors (see below), whose sum is σ = 22193346168. Its totient is φ = 5502202624.

The previous prime is 11138607967. The next prime is 11138607989. The reversal of 11138607968 is 86970683111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11138607967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2094221 + ... + 2099532.

It is an arithmetic number, because the mean of its divisors is an integer number (924722757).

Almost surely, 2^11138607968 is an apocalyptic number.

It is an amenable number.

11138607968 is a deficient number, since it is larger than the sum of its proper divisors (11054738200).

11138607968 is an equidigital number, since it uses as much as digits as its factorization.

11138607968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193846 (or 4193838 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 11138607968 in words is "eleven billion, one hundred thirty-eight million, six hundred seven thousand, nine hundred sixty-eight".