75628228177 has 2 divisors, whose sum is σ = 75628228178. Its totient is φ = 75628228176.

The previous prime is 75628228157. The next prime is 75628228183. The reversal of 75628228177 is 77182282657.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73484908561 + 2143319616 = 271081^2 + 46296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75628228177 is a prime.

It is not a weakly prime, because it can be changed into another prime (75628228147) 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, 37814114088 + 37814114089.

It is an arithmetic number, because the mean of its divisors is an integer number (37814114089).

Almost surely, 2^75628228177 is an apocalyptic number.

It is an amenable number.

75628228177 is a deficient number, since it is larger than the sum of its proper divisors (1).

75628228177 is an equidigital number, since it uses as much as digits as its factorization.

75628228177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5268480, while the sum is 55.

The spelling of 75628228177 in words is "seventy-five billion, six hundred twenty-eight million, two hundred twenty-eight thousand, one hundred seventy-seven".