672805264336 has 20 divisors (see below), whose sum is σ = 1335354352164. Its totient is φ = 328197689600.

The previous prime is 672805264319. The next prime is 672805264337. The reversal of 672805264336 is 633462508276.

It can be written as a sum of positive squares in 2 ways, for example, as 363179790736 + 309625473600 = 602644^2 + 556440^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672805264337) 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, 512808235 + ... + 512809546.

Almost surely, 2^672805264336 is an apocalyptic number.

It is an amenable number.

672805264336 is a deficient number, since it is larger than the sum of its proper divisors (662549087828).

672805264336 is a wasteful number, since it uses less digits than its factorization.

672805264336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025617830 (or 1025617824 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 672805264336 in words is "six hundred seventy-two billion, eight hundred five million, two hundred sixty-four thousand, three hundred thirty-six".