7214884128 has 72 divisors (see below), whose sum is σ = 20525584716. Its totient is φ = 2403993600.

The previous prime is 7214884111. The next prime is 7214884139. The reversal of 7214884128 is 8214884127.

It can be written as a sum of positive squares in 2 ways, for example, as 6656601744 + 558282384 = 81588^2 + 23628^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1276188 + ... + 1281828.

Almost surely, 2^7214884128 is an apocalyptic number.

It is an amenable number.

7214884128 is an abundant number, since it is smaller than the sum of its proper divisors (13310700588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7214884128 is a wasteful number, since it uses less digits than its factorization.

7214884128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10098 (or 10087 counting only the distinct ones).

The product of its digits is 229376, while the sum is 45.

The square root of 7214884128 is about 84940.4740274034. The cubic root of 7214884128 is about 1932.3084522241.

Subtracting 7214884128 from its reverse (8214884127), we obtain a palindrome (999999999).

The spelling of 7214884128 in words is "seven billion, two hundred fourteen million, eight hundred eighty-four thousand, one hundred twenty-eight".