643007114611 has 2 divisors, whose sum is σ = 643007114612. Its totient is φ = 643007114610.

The previous prime is 643007114609. The next prime is 643007114621. The reversal of 643007114611 is 116411700346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 643007114611 - 2¹ = 643007114609 is a prime.

Together with 643007114609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (643007114621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321503557305 + 321503557306.

It is an arithmetic number, because the mean of its divisors is an integer number (321503557306).

Almost surely, 2^643007114611 is an apocalyptic number.

643007114611 is a deficient number, since it is larger than the sum of its proper divisors (1).

643007114611 is an equidigital number, since it uses as much as digits as its factorization.

643007114611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 643007114611 its reverse (116411700346), we get a palindrome (759418814957).

The spelling of 643007114611 in words is "six hundred forty-three billion, seven million, one hundred fourteen thousand, six hundred eleven".