7730215147517 has 2 divisors, whose sum is σ = 7730215147518. Its totient is φ = 7730215147516.

The previous prime is 7730215147483. The next prime is 7730215147519. The reversal of 7730215147517 is 7157415120377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6766766892601 + 963448254916 = 2601301^2 + 981554^2 .

It is a cyclic number.

It is not a de Polignac number, because 7730215147517 - 2³⁸ = 7455337240573 is a prime.

Together with 7730215147519, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7730215147519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3865107573758 + 3865107573759.

It is an arithmetic number, because the mean of its divisors is an integer number (3865107573759).

Almost surely, 2^{7730215147517} is an apocalyptic number.

It is an amenable number.

7730215147517 is a deficient number, since it is larger than the sum of its proper divisors (1).

7730215147517 is an equidigital number, since it uses as much as digits as its factorization.

7730215147517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440600, while the sum is 50.

The spelling of 7730215147517 in words is "seven trillion, seven hundred thirty billion, two hundred fifteen million, one hundred forty-seven thousand, five hundred seventeen".