677219850427 has 2 divisors, whose sum is σ = 677219850428. Its totient is φ = 677219850426.

The previous prime is 677219850371. The next prime is 677219850443. The reversal of 677219850427 is 724058912776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677219850427 - 2¹¹ = 677219848379 is a prime.

It is not a weakly prime, because it can be changed into another prime (677219850457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338609925213 + 338609925214.

It is an arithmetic number, because the mean of its divisors is an integer number (338609925214).

Almost surely, 2^677219850427 is an apocalyptic number.

677219850427 is a deficient number, since it is larger than the sum of its proper divisors (1).

677219850427 is an equidigital number, since it uses as much as digits as its factorization.

677219850427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11854080, while the sum is 58.

The spelling of 677219850427 in words is "six hundred seventy-seven billion, two hundred nineteen million, eight hundred fifty thousand, four hundred twenty-seven".