677267634749 has 2 divisors, whose sum is σ = 677267634750. Its totient is φ = 677267634748.

The previous prime is 677267634671. The next prime is 677267634763. The reversal of 677267634749 is 947436762776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640468885849 + 36798748900 = 800293^2 + 191830^2 .

It is a cyclic number.

It is not a de Polignac number, because 677267634749 - 2¹² = 677267630653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677267634949) 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 as a sum of consecutive naturals, namely, 338633817374 + 338633817375.

It is an arithmetic number, because the mean of its divisors is an integer number (338633817375).

Almost surely, 2^677267634749 is an apocalyptic number.

It is an amenable number.

677267634749 is a deficient number, since it is larger than the sum of its proper divisors (1).

677267634749 is an equidigital number, since it uses as much as digits as its factorization.

677267634749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 448084224, while the sum is 68.

The spelling of 677267634749 in words is "six hundred seventy-seven billion, two hundred sixty-seven million, six hundred thirty-four thousand, seven hundred forty-nine".