11438131593 has 12 divisors (see below), whose sum is σ = 17740775760. Its totient is φ = 6536075112.

The previous prime is 11438131591. The next prime is 11438131603. The reversal of 11438131593 is 39513183411.

It is not a de Polignac number, because 11438131593 - 2¹ = 11438131591 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11438131591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38905063 + ... + 38905356.

It is an arithmetic number, because the mean of its divisors is an integer number (1478397980).

Almost surely, 2^11438131593 is an apocalyptic number.

It is an amenable number.

11438131593 is a deficient number, since it is larger than the sum of its proper divisors (6302644167).

11438131593 is an equidigital number, since it uses as much as digits as its factorization.

11438131593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77810436 (or 77810429 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The spelling of 11438131593 in words is "eleven billion, four hundred thirty-eight million, one hundred thirty-one thousand, five hundred ninety-three".