672135676273 has 4 divisors (see below), whose sum is σ = 672699077028. Its totient is φ = 671572275520.

The previous prime is 672135676237. The next prime is 672135676297. The reversal of 672135676273 is 372676531276.

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 384788217969 + 287347458304 = 620313^2 + 536048^2 .

It is a cyclic number.

It is not a de Polignac number, because 672135676273 - 2¹⁷ = 672135545201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672135676213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281698588 + ... + 281700973.

It is an arithmetic number, because the mean of its divisors is an integer number (168174769257).

Almost surely, 2^672135676273 is an apocalyptic number.

It is an amenable number.

672135676273 is a deficient number, since it is larger than the sum of its proper divisors (563400755).

672135676273 is a wasteful number, since it uses less digits than its factorization.

672135676273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563400754.

The product of its digits is 13335840, while the sum is 55.

The spelling of 672135676273 in words is "six hundred seventy-two billion, one hundred thirty-five million, six hundred seventy-six thousand, two hundred seventy-three".