438353222612831 has 2 divisors, whose sum is σ = 438353222612832. Its totient is φ = 438353222612830.

The previous prime is 438353222612821. The next prime is 438353222612881. The reversal of 438353222612831 is 138216222353834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438353222612831 - 2³⁸ = 438078344705887 is a prime.

It is a super-2 number, since 2×438353222612831² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438353222612821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219176611306415 + 219176611306416.

It is an arithmetic number, because the mean of its divisors is an integer number (219176611306416).

Almost surely, 2^{438353222612831} is an apocalyptic number.

438353222612831 is a deficient number, since it is larger than the sum of its proper divisors (1).

438353222612831 is an equidigital number, since it uses as much as digits as its factorization.

438353222612831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9953280, while the sum is 53.

The spelling of 438353222612831 in words is "four hundred thirty-eight trillion, three hundred fifty-three billion, two hundred twenty-two million, six hundred twelve thousand, eight hundred thirty-one".