2100512459489 has 2 divisors, whose sum is σ = 2100512459490. Its totient is φ = 2100512459488.

The previous prime is 2100512459453. The next prime is 2100512459503. The reversal of 2100512459489 is 9849542150012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1439779208464 + 660733251025 = 1199908^2 + 812855^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100512459489 - 2⁸ = 2100512459233 is a prime.

It is a super-2 number, since 2×2100512459489² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2100512459449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050256229744 + 1050256229745.

It is an arithmetic number, because the mean of its divisors is an integer number (1050256229745).

Almost surely, 2^{2100512459489} is an apocalyptic number.

It is an amenable number.

2100512459489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100512459489 is an equidigital number, since it uses as much as digits as its factorization.

2100512459489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 2100512459489 in words is "two trillion, one hundred billion, five hundred twelve million, four hundred fifty-nine thousand, four hundred eighty-nine".