214686876926809 has 9 divisors (see below), whose sum is σ = 249737914919541. Its totient is φ = 184017235166940.

The previous prime is 214686876926783. The next prime is 214686876926857. The reversal of 214686876926809 is 908629678686412.

The square root of 214686876926809 is 14652197.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 214686876926809 - 2⁷ = 214686876926681 is a prime.

It is a super-4 number, since 4×214686876926809⁴ (a number of 58 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214686876126809) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 101518794 + ... + 103611964.

Almost surely, 2^{214686876926809} is an apocalyptic number.

214686876926809 is the 14652197-th square number.

214686876926809 is the 7326099-th centered octagonal number.

It is an amenable number.

214686876926809 is a deficient number, since it is larger than the sum of its proper divisors (35051037992732).

214686876926809 is an frugal number, since it uses more digits than its factorization.

214686876926809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186356 (or 2093178 counting only the distinct ones).

The product of its (nonzero) digits is 6019743744, while the sum is 82.

The spelling of 214686876926809 in words is "two hundred fourteen trillion, six hundred eighty-six billion, eight hundred seventy-six million, nine hundred twenty-six thousand, eight hundred nine".