75779170009 has 2 divisors, whose sum is σ = 75779170010. Its totient is φ = 75779170008.

The previous prime is 75779169979. The next prime is 75779170037. The reversal of 75779170009 is 90007197757.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40304577600 + 35474592409 = 200760^2 + 188347^2 .

It is an emirp because it is prime and its reverse (90007197757) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75779170009 - 2⁹ = 75779169497 is a prime.

It is not a weakly prime, because it can be changed into another prime (75779170109) 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, 37889585004 + 37889585005.

It is an arithmetic number, because the mean of its divisors is an integer number (37889585005).

Almost surely, 2^75779170009 is an apocalyptic number.

It is an amenable number.

75779170009 is a deficient number, since it is larger than the sum of its proper divisors (1).

75779170009 is an equidigital number, since it uses as much as digits as its factorization.

75779170009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972405, while the sum is 52.

The spelling of 75779170009 in words is "seventy-five billion, seven hundred seventy-nine million, one hundred seventy thousand, nine".