1028998866607 has 2 divisors, whose sum is σ = 1028998866608. Its totient is φ = 1028998866606.

The previous prime is 1028998866589. The next prime is 1028998866641. The reversal of 1028998866607 is 7066688998201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1028998866607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1028998866647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514499433303 + 514499433304.

It is an arithmetic number, because the mean of its divisors is an integer number (514499433304).

Almost surely, 2^{1028998866607} is an apocalyptic number.

1028998866607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028998866607 is an equidigital number, since it uses as much as digits as its factorization.

1028998866607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125411328, while the sum is 70.

The spelling of 1028998866607 in words is "one trillion, twenty-eight billion, nine hundred ninety-eight million, eight hundred sixty-six thousand, six hundred seven".