677805974347 has 2 divisors, whose sum is σ = 677805974348. Its totient is φ = 677805974346.

The previous prime is 677805974291. The next prime is 677805974359. The reversal of 677805974347 is 743479508776.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677805974347 is a prime.

It is not a weakly prime, because it can be changed into another prime (677805974147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338902987173 + 338902987174.

It is an arithmetic number, because the mean of its divisors is an integer number (338902987174).

Almost surely, 2^677805974347 is an apocalyptic number.

677805974347 is a deficient number, since it is larger than the sum of its proper divisors (1).

677805974347 is an equidigital number, since it uses as much as digits as its factorization.

677805974347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248935680, while the sum is 67.

The spelling of 677805974347 in words is "six hundred seventy-seven billion, eight hundred five million, nine hundred seventy-four thousand, three hundred forty-seven".