7216851751 has 2 divisors, whose sum is σ = 7216851752. Its totient is φ = 7216851750.

The previous prime is 7216851683. The next prime is 7216851767. The reversal of 7216851751 is 1571586127.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7216851751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7216851698 and 7216851707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7216851451) by changing a digit.

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 as a sum of consecutive naturals, namely, 3608425875 + 3608425876.

It is an arithmetic number, because the mean of its divisors is an integer number (3608425876).

Almost surely, 2^7216851751 is an apocalyptic number.

7216851751 is a deficient number, since it is larger than the sum of its proper divisors (1).

7216851751 is an equidigital number, since it uses as much as digits as its factorization.

7216851751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 43.

The square root of 7216851751 is about 84952.0556019688. The cubic root of 7216851751 is about 1932.4840941752.

The spelling of 7216851751 in words is "seven billion, two hundred sixteen million, eight hundred fifty-one thousand, seven hundred fifty-one".