75444265973 has 2 divisors, whose sum is σ = 75444265974. Its totient is φ = 75444265972.

The previous prime is 75444265933. The next prime is 75444265991. The reversal of 75444265973 is 37956244457.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74913332209 + 530933764 = 273703^2 + 23042^2 .

It is an emirp because it is prime and its reverse (37956244457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75444265973 - 2⁸ = 75444265717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75444265933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37722132986 + 37722132987.

It is an arithmetic number, because the mean of its divisors is an integer number (37722132987).

Almost surely, 2^75444265973 is an apocalyptic number.

It is an amenable number.

75444265973 is a deficient number, since it is larger than the sum of its proper divisors (1).

75444265973 is an equidigital number, since it uses as much as digits as its factorization.

75444265973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25401600, while the sum is 56.

The spelling of 75444265973 in words is "seventy-five billion, four hundred forty-four million, two hundred sixty-five thousand, nine hundred seventy-three".