642532232443 has 2 divisors, whose sum is σ = 642532232444. Its totient is φ = 642532232442.

The previous prime is 642532232413. The next prime is 642532232467. The reversal of 642532232443 is 344232235246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 642532232443 - 2⁵ = 642532232411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 642532232396 and 642532232405.

It is not a weakly prime, because it can be changed into another prime (642532232413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321266116221 + 321266116222.

It is an arithmetic number, because the mean of its divisors is an integer number (321266116222).

Almost surely, 2^642532232443 is an apocalyptic number.

642532232443 is a deficient number, since it is larger than the sum of its proper divisors (1).

642532232443 is an equidigital number, since it uses as much as digits as its factorization.

642532232443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 40.

Adding to 642532232443 its reverse (344232235246), we get a palindrome (986764467689).

The spelling of 642532232443 in words is "six hundred forty-two billion, five hundred thirty-two million, two hundred thirty-two thousand, four hundred forty-three".