214345657678 has 16 divisors (see below), whose sum is σ = 325947646080. Its totient is φ = 105696665856.

The previous prime is 214345657621. The next prime is 214345657697. The reversal of 214345657678 is 876756543412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173443 + ... + 2269921.

It is an arithmetic number, because the mean of its divisors is an integer number (20371727880).

Almost surely, 2^214345657678 is an apocalyptic number.

214345657678 is a deficient number, since it is larger than the sum of its proper divisors (111601988402).

214345657678 is a wasteful number, since it uses less digits than its factorization.

214345657678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111771.

The product of its digits is 33868800, while the sum is 58.

The spelling of 214345657678 in words is "two hundred fourteen billion, three hundred forty-five million, six hundred fifty-seven thousand, six hundred seventy-eight".