11638703023 has 32 divisors (see below), whose sum is σ = 13115289600. Its totient is φ = 10276761600.

The previous prime is 11638703009. The next prime is 11638703039. The reversal of 11638703023 is 32030783611.

It is a cyclic number.

It is not a de Polignac number, because 11638703023 - 2²⁹ = 11101832111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11638703023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11638703003) 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 31 ways as a sum of consecutive naturals, for example, 10948390 + ... + 10949452.

It is an arithmetic number, because the mean of its divisors is an integer number (409852800).

Almost surely, 2^11638703023 is an apocalyptic number.

11638703023 is a deficient number, since it is larger than the sum of its proper divisors (1476586577).

11638703023 is a wasteful number, since it uses less digits than its factorization.

11638703023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 11638703023 in words is "eleven billion, six hundred thirty-eight million, seven hundred three thousand, twenty-three".