443948641831 has 2 divisors, whose sum is σ = 443948641832. Its totient is φ = 443948641830.

The previous prime is 443948641733. The next prime is 443948641841. The reversal of 443948641831 is 138146849344.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 443948641831 - 2²⁷ = 443814424103 is a prime.

It is a super-2 number, since 2×443948641831² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443948641841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221974320915 + 221974320916.

It is an arithmetic number, because the mean of its divisors is an integer number (221974320916).

Almost surely, 2^443948641831 is an apocalyptic number.

443948641831 is a deficient number, since it is larger than the sum of its proper divisors (1).

443948641831 is an equidigital number, since it uses as much as digits as its factorization.

443948641831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7962624, while the sum is 55.

The spelling of 443948641831 in words is "four hundred forty-three billion, nine hundred forty-eight million, six hundred forty-one thousand, eight hundred thirty-one".