8277742218973 has 2 divisors, whose sum is σ = 8277742218974. Its totient is φ = 8277742218972.

The previous prime is 8277742218917. The next prime is 8277742218989. The reversal of 8277742218973 is 3798122477728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6869525676484 + 1408216542489 = 2620978^2 + 1186683^2 .

It is a cyclic number.

It is not a de Polignac number, because 8277742218973 - 2¹³ = 8277742210781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8277742218899 and 8277742218908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8277742213973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4138871109486 + 4138871109487.

It is an arithmetic number, because the mean of its divisors is an integer number (4138871109487).

Almost surely, 2^{8277742218973} is an apocalyptic number.

It is an amenable number.

8277742218973 is a deficient number, since it is larger than the sum of its proper divisors (1).

8277742218973 is an equidigital number, since it uses as much as digits as its factorization.

8277742218973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132765696, while the sum is 67.

The spelling of 8277742218973 in words is "eight trillion, two hundred seventy-seven billion, seven hundred forty-two million, two hundred eighteen thousand, nine hundred seventy-three".