75908144749 has 2 divisors, whose sum is σ = 75908144750. Its totient is φ = 75908144748.

The previous prime is 75908144717. The next prime is 75908144759. The reversal of 75908144749 is 94744180957.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62003490025 + 13904654724 = 249005^2 + 117918^2 .

It is a cyclic number.

It is not a de Polignac number, because 75908144749 - 2⁵ = 75908144717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75908144693 and 75908144702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75908144759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37954072374 + 37954072375.

It is an arithmetic number, because the mean of its divisors is an integer number (37954072375).

Almost surely, 2^75908144749 is an apocalyptic number.

It is an amenable number.

75908144749 is a deficient number, since it is larger than the sum of its proper divisors (1).

75908144749 is an equidigital number, since it uses as much as digits as its factorization.

75908144749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 75908144749 in words is "seventy-five billion, nine hundred eight million, one hundred forty-four thousand, seven hundred forty-nine".