11438396227479 has 64 divisors (see below), whose sum is σ = 16637298339200. Its totient is φ = 6948289216512.

The previous prime is 11438396227439. The next prime is 11438396227493. The reversal of 11438396227479 is 97472269383411.

It is not a de Polignac number, because 11438396227479 - 2¹² = 11438396223383 is a prime.

It is a super-3 number, since 3×11438396227479³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a nialpdrome in base 3 and base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438396227439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1393392927 + ... + 1393401135.

It is an arithmetic number, because the mean of its divisors is an integer number (259957786550).

Almost surely, 2^{11438396227479} is an apocalyptic number.

11438396227479 is a deficient number, since it is larger than the sum of its proper divisors (5198902111721).

11438396227479 is a wasteful number, since it uses less digits than its factorization.

11438396227479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524.

The product of its digits is 109734912, while the sum is 66.

The spelling of 11438396227479 in words is "eleven trillion, four hundred thirty-eight billion, three hundred ninety-six million, two hundred twenty-seven thousand, four hundred seventy-nine".