7212343651 has 2 divisors, whose sum is σ = 7212343652. Its totient is φ = 7212343650.

The previous prime is 7212343639. The next prime is 7212343669. The reversal of 7212343651 is 1563432127.

It is a weak prime.

It is an emirp because it is prime and its reverse (1563432127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7212343651 - 2¹¹ = 7212341603 is a prime.

It is not a weakly prime, because it can be changed into another prime (7212343451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606171825 + 3606171826.

It is an arithmetic number, because the mean of its divisors is an integer number (3606171826).

Almost surely, 2^7212343651 is an apocalyptic number.

7212343651 is a deficient number, since it is larger than the sum of its proper divisors (1).

7212343651 is an equidigital number, since it uses as much as digits as its factorization.

7212343651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 7212343651 is about 84925.5182557045. The cubic root of 7212343651 is about 1932.0816266145.

Adding to 7212343651 its reverse (1563432127), we get a palindrome (8775775778).

The spelling of 7212343651 in words is "seven billion, two hundred twelve million, three hundred forty-three thousand, six hundred fifty-one".