673776542231153 has 4 divisors (see below), whose sum is σ = 673792556737188. Its totient is φ = 673760527725120.

The previous prime is 673776542231141. The next prime is 673776542231197. The reversal of 673776542231153 is 351132245677376.

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

It can be written as a sum of positive squares in 2 ways, for example, as 170025091760689 + 503751450470464 = 13039367^2 + 22444408^2 .

It is a cyclic number.

It is not a de Polignac number, because 673776542231153 - 2²⁸ = 673776273795697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (673776542230153) 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, 8007189908 + ... + 8007274053.

It is an arithmetic number, because the mean of its divisors is an integer number (168448139184297).

Almost surely, 2^{673776542231153} is an apocalyptic number.

It is an amenable number.

673776542231153 is a deficient number, since it is larger than the sum of its proper divisors (16014506035).

673776542231153 is a wasteful number, since it uses less digits than its factorization.

673776542231153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16014506034.

The product of its digits is 133358400, while the sum is 62.

The spelling of 673776542231153 in words is "six hundred seventy-three trillion, seven hundred seventy-six billion, five hundred forty-two million, two hundred thirty-one thousand, one hundred fifty-three".