7216866674 has 16 divisors (see below), whose sum is σ = 10928658840. Its totient is φ = 3574005120.

The previous prime is 7216866667. The next prime is 7216866719. The reversal of 7216866674 is 4766686127.

It can be written as a sum of positive squares in 4 ways, for example, as 4036696225 + 3180170449 = 63535^2 + 56393^2 .

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, 872462 + ... + 880694.

Almost surely, 2^7216866674 is an apocalyptic number.

7216866674 is a deficient number, since it is larger than the sum of its proper divisors (3711792166).

7216866674 is a wasteful number, since it uses less digits than its factorization.

7216866674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12365.

The product of its digits is 4064256, while the sum is 53.

The square root of 7216866674 is about 84952.1434338181. The cubic root of 7216866674 is about 1932.4854261707.

The spelling of 7216866674 in words is "seven billion, two hundred sixteen million, eight hundred sixty-six thousand, six hundred seventy-four".