672821829602 has 12 divisors (see below), whose sum is σ = 1092837824370. Its totient is φ = 310533151968.

The previous prime is 672821829569. The next prime is 672821829643. The reversal of 672821829602 is 206928128276.

It can be written as a sum of positive squares in 3 ways, for example, as 294066513841 + 378755315761 = 542279^2 + 615431^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 995298227 + ... + 995298902.

Almost surely, 2^672821829602 is an apocalyptic number.

672821829602 is a deficient number, since it is larger than the sum of its proper divisors (420015994768).

672821829602 is a wasteful number, since it uses less digits than its factorization.

672821829602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990597157 (or 1990597144 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 672821829602 in words is "six hundred seventy-two billion, eight hundred twenty-one million, eight hundred twenty-nine thousand, six hundred two".