673549741813249 has 4 divisors (see below), whose sum is σ = 769771133500864. Its totient is φ = 577328350125636.

The previous prime is 673549741813243. The next prime is 673549741813279. The reversal of 673549741813249 is 942318147945376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 673549741813249 - 2¹⁷ = 673549741682177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673549741813243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48110695843797 + ... + 48110695843810.

It is an arithmetic number, because the mean of its divisors is an integer number (192442783375216).

Almost surely, 2^{673549741813249} is an apocalyptic number.

It is an amenable number.

673549741813249 is a deficient number, since it is larger than the sum of its proper divisors (96221391687615).

673549741813249 is an equidigital number, since it uses as much as digits as its factorization.

673549741813249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96221391687614.

The product of its digits is 1097349120, while the sum is 73.

The spelling of 673549741813249 in words is "six hundred seventy-three trillion, five hundred forty-nine billion, seven hundred forty-one million, eight hundred thirteen thousand, two hundred forty-nine".