213490723727 has 2 divisors, whose sum is σ = 213490723728. Its totient is φ = 213490723726.

The previous prime is 213490723703. The next prime is 213490723751. The reversal of 213490723727 is 727327094312.

It is a balanced prime because it is at equal distance from previous prime (213490723703) and next prime (213490723751).

It is a cyclic number.

It is not a de Polignac number, because 213490723727 - 2²⁰ = 213489675151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213490723427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106745361863 + 106745361864.

It is an arithmetic number, because the mean of its divisors is an integer number (106745361864).

Almost surely, 2^213490723727 is an apocalyptic number.

213490723727 is a deficient number, since it is larger than the sum of its proper divisors (1).

213490723727 is an equidigital number, since it uses as much as digits as its factorization.

213490723727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 47.

The spelling of 213490723727 in words is "two hundred thirteen billion, four hundred ninety million, seven hundred twenty-three thousand, seven hundred twenty-seven".