8228132550997 has 2 divisors, whose sum is σ = 8228132550998. Its totient is φ = 8228132550996.

The previous prime is 8228132550977. The next prime is 8228132551003. The reversal of 8228132550997 is 7990552318228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7612086518001 + 616046032996 = 2759001^2 + 784886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8228132550997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8228132550947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4114066275498 + 4114066275499.

It is an arithmetic number, because the mean of its divisors is an integer number (4114066275499).

Almost surely, 2^{8228132550997} is an apocalyptic number.

It is an amenable number.

8228132550997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8228132550997 is an equidigital number, since it uses as much as digits as its factorization.

8228132550997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 8228132550997 in words is "eight trillion, two hundred twenty-eight billion, one hundred thirty-two million, five hundred fifty thousand, nine hundred ninety-seven".