438148669379 has 2 divisors, whose sum is σ = 438148669380. Its totient is φ = 438148669378.

The previous prime is 438148669369. The next prime is 438148669417. The reversal of 438148669379 is 973966841834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438148669379 - 2¹⁶ = 438148603843 is a prime.

It is not a weakly prime, because it can be changed into another prime (438148669319) 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 as a sum of consecutive naturals, namely, 219074334689 + 219074334690.

It is an arithmetic number, because the mean of its divisors is an integer number (219074334690).

Almost surely, 2^438148669379 is an apocalyptic number.

438148669379 is a deficient number, since it is larger than the sum of its proper divisors (1).

438148669379 is an equidigital number, since it uses as much as digits as its factorization.

438148669379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188116992, while the sum is 68.

The spelling of 438148669379 in words is "four hundred thirty-eight billion, one hundred forty-eight million, six hundred sixty-nine thousand, three hundred seventy-nine".