2214887816 has 8 divisors (see below), whose sum is σ = 4152914670. Its totient is φ = 1107443904.

The previous prime is 2214887791. The next prime is 2214887839. The reversal of 2214887816 is 6187884122.

It can be written as a sum of positive squares in only one way, i.e., 2194547716 + 20340100 = 46846^2 + 4510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138430481 + ... + 138430496.

Almost surely, 2^2214887816 is an apocalyptic number.

It is an amenable number.

2214887816 is a deficient number, since it is larger than the sum of its proper divisors (1938026854).

2214887816 is a wasteful number, since it uses less digits than its factorization.

2214887816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276860983 (or 276860979 counting only the distinct ones).

The product of its digits is 344064, while the sum is 47.

The square root of 2214887816 is about 47062.5946586033. The cubic root of 2214887816 is about 1303.5186365491.

The spelling of 2214887816 in words is "two billion, two hundred fourteen million, eight hundred eighty-seven thousand, eight hundred sixteen".