438494756143 has 2 divisors, whose sum is σ = 438494756144. Its totient is φ = 438494756142.

The previous prime is 438494756137. The next prime is 438494756171. The reversal of 438494756143 is 341657494834.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438494756143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438494753143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219247378071 + 219247378072.

It is an arithmetic number, because the mean of its divisors is an integer number (219247378072).

Almost surely, 2^438494756143 is an apocalyptic number.

438494756143 is a deficient number, since it is larger than the sum of its proper divisors (1).

438494756143 is an equidigital number, since it uses as much as digits as its factorization.

438494756143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34836480, while the sum is 58.

The spelling of 438494756143 in words is "four hundred thirty-eight billion, four hundred ninety-four million, seven hundred fifty-six thousand, one hundred forty-three".