675861479977 has 2 divisors, whose sum is σ = 675861479978. Its totient is φ = 675861479976.

The previous prime is 675861479947. The next prime is 675861480011. The reversal of 675861479977 is 779974168576.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408136988736 + 267724491241 = 638856^2 + 517421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-675861479977 is a prime.

It is not a weakly prime, because it can be changed into another prime (675861479947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337930739988 + 337930739989.

It is an arithmetic number, because the mean of its divisors is an integer number (337930739989).

Almost surely, 2^675861479977 is an apocalyptic number.

It is an amenable number.

675861479977 is a deficient number, since it is larger than the sum of its proper divisors (1).

675861479977 is an equidigital number, since it uses as much as digits as its factorization.

675861479977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120210560, while the sum is 76.

The spelling of 675861479977 in words is "six hundred seventy-five billion, eight hundred sixty-one million, four hundred seventy-nine thousand, nine hundred seventy-seven".