75244379173 has 2 divisors, whose sum is σ = 75244379174. Its totient is φ = 75244379172.

The previous prime is 75244379149. The next prime is 75244379239. The reversal of 75244379173 is 37197344257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73461597444 + 1782781729 = 271038^2 + 42223^2 .

It is a cyclic number.

It is not a de Polignac number, because 75244379173 - 2⁵ = 75244379141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75244379173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75244379773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37622189586 + 37622189587.

It is an arithmetic number, because the mean of its divisors is an integer number (37622189587).

Almost surely, 2^75244379173 is an apocalyptic number.

It is an amenable number.

75244379173 is a deficient number, since it is larger than the sum of its proper divisors (1).

75244379173 is an equidigital number, since it uses as much as digits as its factorization.

75244379173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4445280, while the sum is 52.

The spelling of 75244379173 in words is "seventy-five billion, two hundred forty-four million, three hundred seventy-nine thousand, one hundred seventy-three".