214746746806729 has 4 divisors (see below), whose sum is σ = 215432838649876. Its totient is φ = 214060654963584.

The previous prime is 214746746806667. The next prime is 214746746806741. The reversal of 214746746806729 is 927608647647412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25880875655625 + 188865871151104 = 5087325^2 + 13742848^2 .

It is a cyclic number.

It is not a de Polignac number, because 214746746806729 - 2⁷ = 214746746806601 is a prime.

It is a super-2 number, since 2×214746746806729² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214746746806759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343045921104 + ... + 343045921729.

It is an arithmetic number, because the mean of its divisors is an integer number (53858209662469).

Almost surely, 2^{214746746806729} is an apocalyptic number.

It is an amenable number.

214746746806729 is a deficient number, since it is larger than the sum of its proper divisors (686091843147).

214746746806729 is an equidigital number, since it uses as much as digits as its factorization.

214746746806729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686091843146.

The product of its (nonzero) digits is 1365590016, while the sum is 73.

The spelling of 214746746806729 in words is "two hundred fourteen trillion, seven hundred forty-six billion, seven hundred forty-six million, eight hundred six thousand, seven hundred twenty-nine".