212729458307 has 2 divisors, whose sum is σ = 212729458308. Its totient is φ = 212729458306.

The previous prime is 212729458267. The next prime is 212729458349. The reversal of 212729458307 is 703854927212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212729458307 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (212729458387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106364729153 + 106364729154.

It is an arithmetic number, because the mean of its divisors is an integer number (106364729154).

Almost surely, 2^212729458307 is an apocalyptic number.

212729458307 is a deficient number, since it is larger than the sum of its proper divisors (1).

212729458307 is an equidigital number, since it uses as much as digits as its factorization.

212729458307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 212729458307 in words is "two hundred twelve billion, seven hundred twenty-nine million, four hundred fifty-eight thousand, three hundred seven".