672856080277 has 4 divisors (see below), whose sum is σ = 672864421996. Its totient is φ = 672847738560.

The previous prime is 672856080251. The next prime is 672856080307. The reversal of 672856080277 is 772080658276.

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 293407472241 + 379448608036 = 541671^2 + 615994^2 .

It is a cyclic number.

It is not a de Polignac number, because 672856080277 - 2¹⁵ = 672856047509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672856080227) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4048674 + ... + 4211587.

It is an arithmetic number, because the mean of its divisors is an integer number (168216105499).

Almost surely, 2^672856080277 is an apocalyptic number.

It is an amenable number.

672856080277 is a deficient number, since it is larger than the sum of its proper divisors (8341719).

672856080277 is an equidigital number, since it uses as much as digits as its factorization.

672856080277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8341718.

The product of its (nonzero) digits is 15805440, while the sum is 58.

The spelling of 672856080277 in words is "six hundred seventy-two billion, eight hundred fifty-six million, eighty thousand, two hundred seventy-seven".