677127821453 has 2 divisors, whose sum is σ = 677127821454. Its totient is φ = 677127821452.

The previous prime is 677127821401. The next prime is 677127821497. The reversal of 677127821453 is 354128721776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 586789704484 + 90338116969 = 766022^2 + 300563^2 .

It is a cyclic number.

It is not a de Polignac number, because 677127821453 - 2³⁶ = 608408344717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 677127821395 and 677127821404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677127824453) 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, 338563910726 + 338563910727.

It is an arithmetic number, because the mean of its divisors is an integer number (338563910727).

Almost surely, 2^677127821453 is an apocalyptic number.

It is an amenable number.

677127821453 is a deficient number, since it is larger than the sum of its proper divisors (1).

677127821453 is an equidigital number, since it uses as much as digits as its factorization.

677127821453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3951360, while the sum is 53.

The spelling of 677127821453 in words is "six hundred seventy-seven billion, one hundred twenty-seven million, eight hundred twenty-one thousand, four hundred fifty-three".