7216745152013 has 2 divisors, whose sum is σ = 7216745152014. Its totient is φ = 7216745152012.

The previous prime is 7216745151991. The next prime is 7216745152021. The reversal of 7216745152013 is 3102515476127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3814041043849 + 3402704108164 = 1952957^2 + 1844642^2 .

It is an emirp because it is prime and its reverse (3102515476127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7216745152013 - 2⁶ = 7216745151949 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7216745152033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3608372576006 + 3608372576007.

It is an arithmetic number, because the mean of its divisors is an integer number (3608372576007).

Almost surely, 2^{7216745152013} is an apocalyptic number.

It is an amenable number.

7216745152013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7216745152013 is an equidigital number, since it uses as much as digits as its factorization.

7216745152013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 7216745152013 in words is "seven trillion, two hundred sixteen billion, seven hundred forty-five million, one hundred fifty-two thousand, thirteen".