6453949273 has 2 divisors, whose sum is σ = 6453949274. Its totient is φ = 6453949272.

The previous prime is 6453949261. The next prime is 6453949283. The reversal of 6453949273 is 3729493546.

It is a happy number.

6453949273 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6334090569 + 119858704 = 79587^2 + 10948^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6453949273 is a prime.

It is a super-2 number, since 2×6453949273² = 83306922436914457058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6453949273.

It is not a weakly prime, because it can be changed into another prime (6453949213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3226974636 + 3226974637.

It is an arithmetic number, because the mean of its divisors is an integer number (3226974637).

Almost surely, 2^6453949273 is an apocalyptic number.

It is an amenable number.

6453949273 is a deficient number, since it is larger than the sum of its proper divisors (1).

6453949273 is an equidigital number, since it uses as much as digits as its factorization.

6453949273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 52.

The square root of 6453949273 is about 80336.4753583327. The cubic root of 6453949273 is about 1861.8378251606.

The spelling of 6453949273 in words is "six billion, four hundred fifty-three million, nine hundred forty-nine thousand, two hundred seventy-three".