9219485558557 has 2 divisors, whose sum is σ = 9219485558558. Its totient is φ = 9219485558556.

The previous prime is 9219485558527. The next prime is 9219485558581. The reversal of 9219485558557 is 7558555849129.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4734828033156 + 4484657525401 = 2175966^2 + 2117701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9219485558557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9219485558557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9219485558527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4609742779278 + 4609742779279.

It is an arithmetic number, because the mean of its divisors is an integer number (4609742779279).

Almost surely, 2^{9219485558557} is an apocalyptic number.

It is an amenable number.

9219485558557 is a deficient number, since it is larger than the sum of its proper divisors (1).

9219485558557 is an equidigital number, since it uses as much as digits as its factorization.

9219485558557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200000, while the sum is 73.

The spelling of 9219485558557 in words is "nine trillion, two hundred nineteen billion, four hundred eighty-five million, five hundred fifty-eight thousand, five hundred fifty-seven".