673576730270521 has 16 divisors (see below), whose sum is σ = 840541219850880. Its totient is φ = 524391706846080.

The previous prime is 673576730270419. The next prime is 673576730270537. The reversal of 673576730270521 is 125072037675376.

It is a cyclic number.

It is not a de Polignac number, because 673576730270521 - 2⁹ = 673576730270009 is a prime.

It is a super-2 number, since 2×673576730270521² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 673576730270521.

It is not an unprimeable number, because it can be changed into a prime (673576730270221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3943895556 + ... + 3944066341.

It is an arithmetic number, because the mean of its divisors is an integer number (52533826240680).

Almost surely, 2^{673576730270521} is an apocalyptic number.

It is an amenable number.

673576730270521 is a deficient number, since it is larger than the sum of its proper divisors (166964489580359).

673576730270521 is a wasteful number, since it uses less digits than its factorization.

673576730270521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7887963024.

The product of its (nonzero) digits is 77792400, while the sum is 61.

The spelling of 673576730270521 in words is "six hundred seventy-three trillion, five hundred seventy-six billion, seven hundred thirty million, two hundred seventy thousand, five hundred twenty-one".