672530806826 has 32 divisors (see below), whose sum is σ = 1108928102400. Its totient is φ = 304477723440.

The previous prime is 672530806819. The next prime is 672530806859. The reversal of 672530806826 is 628608035276.

It is a super-3 number, since 3×672530806826³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817031 + ... + 1418661.

It is an arithmetic number, because the mean of its divisors is an integer number (34654003200).

Almost surely, 2^672530806826 is an apocalyptic number.

672530806826 is a deficient number, since it is larger than the sum of its proper divisors (436397295574).

672530806826 is a wasteful number, since it uses less digits than its factorization.

672530806826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602954.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 672530806826 in words is "six hundred seventy-two billion, five hundred thirty million, eight hundred six thousand, eight hundred twenty-six".