673395678953 has 2 divisors, whose sum is σ = 673395678954. Its totient is φ = 673395678952.

The previous prime is 673395678929. The next prime is 673395679003. The reversal of 673395678953 is 359876593376.

673395678953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 620735985424 + 52659693529 = 787868^2 + 229477^2 .

It is a cyclic number.

It is not a de Polignac number, because 673395678953 - 2²⁸ = 673127243497 is a prime.

It is not a weakly prime, because it can be changed into another prime (673395678913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336697839476 + 336697839477.

It is an arithmetic number, because the mean of its divisors is an integer number (336697839477).

Almost surely, 2^673395678953 is an apocalyptic number.

It is an amenable number.

673395678953 is a deficient number, since it is larger than the sum of its proper divisors (1).

673395678953 is an equidigital number, since it uses as much as digits as its factorization.

673395678953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 771573600, while the sum is 71.

The spelling of 673395678953 in words is "six hundred seventy-three billion, three hundred ninety-five million, six hundred seventy-eight thousand, nine hundred fifty-three".