7216512356 has 12 divisors (see below), whose sum is σ = 12781052592. Its totient is φ = 3564783048.

The previous prime is 7216512343. The next prime is 7216512389. The reversal of 7216512356 is 6532156127.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10867910 + ... + 10868573.

It is an arithmetic number, because the mean of its divisors is an integer number (1065087716).

Almost surely, 2^7216512356 is an apocalyptic number.

It is an amenable number.

7216512356 is a deficient number, since it is larger than the sum of its proper divisors (5564540236).

7216512356 is a wasteful number, since it uses less digits than its factorization.

7216512356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21736570 (or 21736568 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 7216512356 is about 84950.0580105747. The cubic root of 7216512356 is about 1932.4537999997.

The spelling of 7216512356 in words is "seven billion, two hundred sixteen million, five hundred twelve thousand, three hundred fifty-six".