673754457349 has 2 divisors, whose sum is σ = 673754457350. Its totient is φ = 673754457348.

The previous prime is 673754457323. The next prime is 673754457391. The reversal of 673754457349 is 943754457376.

673754457349 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., 557784922500 + 115969534849 = 746850^2 + 340543^2 .

It is a cyclic number.

It is not a de Polignac number, because 673754457349 - 2⁷ = 673754457221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673754457149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336877228674 + 336877228675.

It is an arithmetic number, because the mean of its divisors is an integer number (336877228675).

Almost surely, 2^673754457349 is an apocalyptic number.

It is an amenable number.

673754457349 is a deficient number, since it is larger than the sum of its proper divisors (1).

673754457349 is an equidigital number, since it uses as much as digits as its factorization.

673754457349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 266716800, while the sum is 64.

The spelling of 673754457349 in words is "six hundred seventy-three billion, seven hundred fifty-four million, four hundred fifty-seven thousand, three hundred forty-nine".