999730449043 has 2 divisors, whose sum is σ = 999730449044. Its totient is φ = 999730449042.

The previous prime is 999730449037. The next prime is 999730449203. The reversal of 999730449043 is 340944037999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999730449043 - 2²¹ = 999728351891 is a prime.

It is not a weakly prime, because it can be changed into another prime (999730449643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499865224521 + 499865224522.

It is an arithmetic number, because the mean of its divisors is an integer number (499865224522).

Almost surely, 2^999730449043 is an apocalyptic number.

999730449043 is a deficient number, since it is larger than the sum of its proper divisors (1).

999730449043 is an equidigital number, since it uses as much as digits as its factorization.

999730449043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26453952, while the sum is 61.

The spelling of 999730449043 in words is "nine hundred ninety-nine billion, seven hundred thirty million, four hundred forty-nine thousand, forty-three".