673355667535 has 4 divisors (see below), whose sum is σ = 808026801048. Its totient is φ = 538684534024.

The previous prime is 673355667473. The next prime is 673355667539. The reversal of 673355667535 is 535766553376.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 673355667535 - 2⁷ = 673355667407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673355667539) 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 in 3 ways as a sum of consecutive naturals, for example, 67335566749 + ... + 67335566758.

It is an arithmetic number, because the mean of its divisors is an integer number (202006700262).

Almost surely, 2^673355667535 is an apocalyptic number.

673355667535 is a deficient number, since it is larger than the sum of its proper divisors (134671133513).

673355667535 is a wasteful number, since it uses less digits than its factorization.

673355667535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134671133512.

The product of its digits is 178605000, while the sum is 61.

The spelling of 673355667535 in words is "six hundred seventy-three billion, three hundred fifty-five million, six hundred sixty-seven thousand, five hundred thirty-five".