11638063777 has 8 divisors (see below), whose sum is σ = 12007751040. Its totient is φ = 11273935920.

The previous prime is 11638063771. The next prime is 11638063817. The reversal of 11638063777 is 77736083611.

11638063777 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 a cyclic number.

It is not a de Polignac number, because 11638063777 - 2³ = 11638063769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11638063777.

It is not an unprimeable number, because it can be changed into a prime (11638063771) 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, 1385599 + ... + 1393972.

It is an arithmetic number, because the mean of its divisors is an integer number (1500968880).

Almost surely, 2^11638063777 is an apocalyptic number.

It is an amenable number.

11638063777 is a deficient number, since it is larger than the sum of its proper divisors (369687263).

11638063777 is an equidigital number, since it uses as much as digits as its factorization.

11638063777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779703.

The product of its (nonzero) digits is 889056, while the sum is 49.

The spelling of 11638063777 in words is "eleven billion, six hundred thirty-eight million, sixty-three thousand, seven hundred seventy-seven".