75444792491 has 2 divisors, whose sum is σ = 75444792492. Its totient is φ = 75444792490.

The previous prime is 75444792457. The next prime is 75444792509. The reversal of 75444792491 is 19429744457.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75444792491 - 2¹⁴ = 75444776107 is a prime.

It is not a weakly prime, because it can be changed into another prime (75444792421) 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, 37722396245 + 37722396246.

It is an arithmetic number, because the mean of its divisors is an integer number (37722396246).

Almost surely, 2^75444792491 is an apocalyptic number.

75444792491 is a deficient number, since it is larger than the sum of its proper divisors (1).

75444792491 is an equidigital number, since it uses as much as digits as its factorization.

75444792491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 56.

The spelling of 75444792491 in words is "seventy-five billion, four hundred forty-four million, seven hundred ninety-two thousand, four hundred ninety-one".