9673142777 has 2 divisors, whose sum is σ = 9673142778. Its totient is φ = 9673142776.

The previous prime is 9673142747. The next prime is 9673142797. The reversal of 9673142777 is 7772413769.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9623806201 + 49336576 = 98101^2 + 7024^2 .

It is a cyclic number.

It is not a de Polignac number, because 9673142777 - 2¹⁶ = 9673077241 is a prime.

It is not a weakly prime, because it can be changed into another prime (9673142747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4836571388 + 4836571389.

It is an arithmetic number, because the mean of its divisors is an integer number (4836571389).

Almost surely, 2^9673142777 is an apocalyptic number.

It is an amenable number.

9673142777 is a deficient number, since it is larger than the sum of its proper divisors (1).

9673142777 is an equidigital number, since it uses as much as digits as its factorization.

9673142777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3111696, while the sum is 53.

The square root of 9673142777 is about 98352.1366163440. The cubic root of 9673142777 is about 2130.7011127710.

The spelling of 9673142777 in words is "nine billion, six hundred seventy-three million, one hundred forty-two thousand, seven hundred seventy-seven".