677267634671 has 2 divisors, whose sum is σ = 677267634672. Its totient is φ = 677267634670.

The previous prime is 677267634661. The next prime is 677267634749. The reversal of 677267634671 is 176436762776.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677267634671 is a prime.

It is a super-3 number, since 3×677267634671³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677267634661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338633817335 + 338633817336.

It is an arithmetic number, because the mean of its divisors is an integer number (338633817336).

Almost surely, 2^677267634671 is an apocalyptic number.

677267634671 is a deficient number, since it is larger than the sum of its proper divisors (1).

677267634671 is an equidigital number, since it uses as much as digits as its factorization.

677267634671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74680704, while the sum is 62.

The spelling of 677267634671 in words is "six hundred seventy-seven billion, two hundred sixty-seven million, six hundred thirty-four thousand, six hundred seventy-one".