75027709949 has 2 divisors, whose sum is σ = 75027709950. Its totient is φ = 75027709948.

The previous prime is 75027709931. The next prime is 75027709961. The reversal of 75027709949 is 94990772057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73739402500 + 1288307449 = 271550^2 + 35893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75027709949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75027709349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37513854974 + 37513854975.

It is an arithmetic number, because the mean of its divisors is an integer number (37513854975).

Almost surely, 2^75027709949 is an apocalyptic number.

It is an amenable number.

75027709949 is a deficient number, since it is larger than the sum of its proper divisors (1).

75027709949 is an equidigital number, since it uses as much as digits as its factorization.

75027709949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10001880, while the sum is 59.

The spelling of 75027709949 in words is "seventy-five billion, twenty-seven million, seven hundred nine thousand, nine hundred forty-nine".