209130372905743 has 2 divisors, whose sum is σ = 209130372905744. Its totient is φ = 209130372905742.

The previous prime is 209130372905737. The next prime is 209130372905749. The reversal of 209130372905743 is 347509273031902.

It is a balanced prime because it is at equal distance from previous prime (209130372905737) and next prime (209130372905749).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-209130372905743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (209130372905749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104565186452871 + 104565186452872.

It is an arithmetic number, because the mean of its divisors is an integer number (104565186452872).

Almost surely, 2^{209130372905743} is an apocalyptic number.

209130372905743 is a deficient number, since it is larger than the sum of its proper divisors (1).

209130372905743 is an equidigital number, since it uses as much as digits as its factorization.

209130372905743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8573040, while the sum is 55.

The spelling of 209130372905743 in words is "two hundred nine trillion, one hundred thirty billion, three hundred seventy-two million, nine hundred five thousand, seven hundred forty-three".