214385305807 has 4 divisors (see below), whose sum is σ = 214388650696. Its totient is φ = 214381960920.

The previous prime is 214385305789. The next prime is 214385305811. The reversal of 214385305807 is 708503583412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214385305807 is a prime.

It is a super-2 number, since 2×214385305807² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214385305207) 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, 1574388 + ... + 1705129.

It is an arithmetic number, because the mean of its divisors is an integer number (53597162674).

Almost surely, 2^214385305807 is an apocalyptic number.

214385305807 is a deficient number, since it is larger than the sum of its proper divisors (3344889).

214385305807 is an equidigital number, since it uses as much as digits as its factorization.

214385305807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344888.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 214385305807 in words is "two hundred fourteen billion, three hundred eighty-five million, three hundred five thousand, eight hundred seven".