438169481327 has 4 divisors (see below), whose sum is σ = 438309162336. Its totient is φ = 438029800320.

The previous prime is 438169481317. The next prime is 438169481363. The reversal of 438169481327 is 723184961834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 723184961834 = 2 ⋅361592480917.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438169481327 is a prime.

It is a super-4 number, since 4×438169481327⁴ (a number of 48 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438169481317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69835799 + ... + 69842072.

It is an arithmetic number, because the mean of its divisors is an integer number (109577290584).

Almost surely, 2^438169481327 is an apocalyptic number.

438169481327 is a deficient number, since it is larger than the sum of its proper divisors (139681009).

438169481327 is a wasteful number, since it uses less digits than its factorization.

438169481327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139681008.

The product of its digits is 6967296, while the sum is 56.

The spelling of 438169481327 in words is "four hundred thirty-eight billion, one hundred sixty-nine million, four hundred eighty-one thousand, three hundred twenty-seven".