999130461493 has 2 divisors, whose sum is σ = 999130461494. Its totient is φ = 999130461492.

The previous prime is 999130461451. The next prime is 999130461521. The reversal of 999130461493 is 394164031999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 953399922084 + 45730539409 = 976422^2 + 213847^2 .

It is a cyclic number.

It is not a de Polignac number, because 999130461493 - 2¹⁷ = 999130330421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999130461403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499565230746 + 499565230747.

It is an arithmetic number, because the mean of its divisors is an integer number (499565230747).

Almost surely, 2^999130461493 is an apocalyptic number.

It is an amenable number.

999130461493 is a deficient number, since it is larger than the sum of its proper divisors (1).

999130461493 is an equidigital number, since it uses as much as digits as its factorization.

999130461493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5668704, while the sum is 58.

The spelling of 999130461493 in words is "nine hundred ninety-nine billion, one hundred thirty million, four hundred sixty-one thousand, four hundred ninety-three".