990494624213 has 2 divisors, whose sum is σ = 990494624214. Its totient is φ = 990494624212.

The previous prime is 990494624201. The next prime is 990494624227. The reversal of 990494624213 is 312426494099.

990494624213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 865126934884 + 125367689329 = 930122^2 + 354073^2 .

It is a cyclic number.

It is not a de Polignac number, because 990494624213 - 2¹⁰ = 990494623189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990494624243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495247312106 + 495247312107.

It is an arithmetic number, because the mean of its divisors is an integer number (495247312107).

Almost surely, 2^990494624213 is an apocalyptic number.

It is an amenable number.

990494624213 is a deficient number, since it is larger than the sum of its proper divisors (1).

990494624213 is an equidigital number, since it uses as much as digits as its factorization.

990494624213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 990494624213 in words is "nine hundred ninety billion, four hundred ninety-four million, six hundred twenty-four thousand, two hundred thirteen".