75043052849 has 2 divisors, whose sum is σ = 75043052850. Its totient is φ = 75043052848.

The previous prime is 75043052839. The next prime is 75043052863. The reversal of 75043052849 is 94825034057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61141463824 + 13901589025 = 247268^2 + 117905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75043052849 is a prime.

It is not a weakly prime, because it can be changed into another prime (75043052839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37521526424 + 37521526425.

It is an arithmetic number, because the mean of its divisors is an integer number (37521526425).

Almost surely, 2^75043052849 is an apocalyptic number.

It is an amenable number.

75043052849 is a deficient number, since it is larger than the sum of its proper divisors (1).

75043052849 is an equidigital number, since it uses as much as digits as its factorization.

75043052849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 75043052849 in words is "seventy-five billion, forty-three million, fifty-two thousand, eight hundred forty-nine".