11638578713 has 8 divisors (see below), whose sum is σ = 12059705856. Its totient is φ = 11220307200.

The previous prime is 11638578691. The next prime is 11638578767. The reversal of 11638578713 is 31787583611.

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 11638578713 - 2¹⁴ = 11638562329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11638578793) 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 7 ways as a sum of consecutive naturals, for example, 705608 + ... + 721913.

It is an arithmetic number, because the mean of its divisors is an integer number (1507463232).

Almost surely, 2^11638578713 is an apocalyptic number.

It is an amenable number.

11638578713 is a deficient number, since it is larger than the sum of its proper divisors (421127143).

11638578713 is a wasteful number, since it uses less digits than its factorization.

11638578713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427815.

The product of its digits is 846720, while the sum is 50.

The spelling of 11638578713 in words is "eleven billion, six hundred thirty-eight million, five hundred seventy-eight thousand, seven hundred thirteen".