677923746737 has 2 divisors, whose sum is σ = 677923746738. Its totient is φ = 677923746736.

The previous prime is 677923746697. The next prime is 677923746739. The reversal of 677923746737 is 737647329776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492131713441 + 185792033296 = 701521^2 + 431036^2 .

It is a cyclic number.

It is not a de Polignac number, because 677923746737 - 2¹² = 677923742641 is a prime.

Together with 677923746739, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (677923746739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338961873368 + 338961873369.

It is an arithmetic number, because the mean of its divisors is an integer number (338961873369).

Almost surely, 2^677923746737 is an apocalyptic number.

It is an amenable number.

677923746737 is a deficient number, since it is larger than the sum of its proper divisors (1).

677923746737 is an equidigital number, since it uses as much as digits as its factorization.

677923746737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 392073696, while the sum is 68.

The spelling of 677923746737 in words is "six hundred seventy-seven billion, nine hundred twenty-three million, seven hundred forty-six thousand, seven hundred thirty-seven".