4671946789649 has 2 divisors, whose sum is σ = 4671946789650. Its totient is φ = 4671946789648.

The previous prime is 4671946789537. The next prime is 4671946789651. The reversal of 4671946789649 is 9469876491764.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4522172371600 + 149774418049 = 2126540^2 + 387007^2 .

It is a cyclic number.

It is not a de Polignac number, because 4671946789649 - 2²⁴ = 4671930012433 is a prime.

Together with 4671946789651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4671946789669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2335973394824 + 2335973394825.

It is an arithmetic number, because the mean of its divisors is an integer number (2335973394825).

Almost surely, 2^{4671946789649} is an apocalyptic number.

It is an amenable number.

4671946789649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4671946789649 is an equidigital number, since it uses as much as digits as its factorization.

4671946789649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3950456832, while the sum is 80.

The spelling of 4671946789649 in words is "four trillion, six hundred seventy-one billion, nine hundred forty-six million, seven hundred eighty-nine thousand, six hundred forty-nine".