999998983513 has 2 divisors, whose sum is σ = 999998983514. Its totient is φ = 999998983512.

The previous prime is 999998983457. The next prime is 999998983517. The reversal of 999998983513 is 315389899999.

999998983513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 805097041984 + 194901941529 = 897272^2 + 441477^2 .

It is a cyclic number.

It is not a de Polignac number, because 999998983513 - 2³⁷ = 862560030041 is a prime.

It is not a weakly prime, because it can be changed into another prime (999998983517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999491756 + 499999491757.

It is an arithmetic number, because the mean of its divisors is an integer number (499999491757).

Almost surely, 2^999998983513 is an apocalyptic number.

It is an amenable number.

999998983513 is a deficient number, since it is larger than the sum of its proper divisors (1).

999998983513 is an equidigital number, since it uses as much as digits as its factorization.

999998983513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1530550080, while the sum is 82.

The spelling of 999998983513 in words is "nine hundred ninety-nine billion, nine hundred ninety-eight million, nine hundred eighty-three thousand, five hundred thirteen".