676021061977 has 2 divisors, whose sum is σ = 676021061978. Its totient is φ = 676021061976.

The previous prime is 676021061917. The next prime is 676021062019. The reversal of 676021061977 is 779160120676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 675863207881 + 157854096 = 822109^2 + 12564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-676021061977 is a prime.

It is not a weakly prime, because it can be changed into another prime (676021061917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338010530988 + 338010530989.

It is an arithmetic number, because the mean of its divisors is an integer number (338010530989).

Almost surely, 2^676021061977 is an apocalyptic number.

It is an amenable number.

676021061977 is a deficient number, since it is larger than the sum of its proper divisors (1).

676021061977 is an equidigital number, since it uses as much as digits as its factorization.

676021061977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1333584, while the sum is 52.

The spelling of 676021061977 in words is "six hundred seventy-six billion, twenty-one million, sixty-one thousand, nine hundred seventy-seven".