65432641949 has 2 divisors, whose sum is σ = 65432641950. Its totient is φ = 65432641948.

The previous prime is 65432641933. The next prime is 65432641951. The reversal of 65432641949 is 94914623456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59365322500 + 6067319449 = 243650^2 + 77893^2 .

It is a cyclic number.

It is not a de Polignac number, because 65432641949 - 2⁴ = 65432641933 is a prime.

Together with 65432641951, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65432641949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65432611949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32716320974 + 32716320975.

It is an arithmetic number, because the mean of its divisors is an integer number (32716320975).

Almost surely, 2^65432641949 is an apocalyptic number.

It is an amenable number.

65432641949 is a deficient number, since it is larger than the sum of its proper divisors (1).

65432641949 is an equidigital number, since it uses as much as digits as its factorization.

65432641949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 53.

The spelling of 65432641949 in words is "sixty-five billion, four hundred thirty-two million, six hundred forty-one thousand, nine hundred forty-nine".