7834682215513 has 2 divisors, whose sum is σ = 7834682215514. Its totient is φ = 7834682215512.

The previous prime is 7834682215471. The next prime is 7834682215523. The reversal of 7834682215513 is 3155122864387.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6849798652944 + 984883562569 = 2617212^2 + 992413^2 .

It is a cyclic number.

It is not a de Polignac number, because 7834682215513 - 2¹³ = 7834682207321 is a prime.

It is a super-2 number, since 2×7834682215513² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7834682215523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3917341107756 + 3917341107757.

It is an arithmetic number, because the mean of its divisors is an integer number (3917341107757).

Almost surely, 2^{7834682215513} is an apocalyptic number.

It is an amenable number.

7834682215513 is a deficient number, since it is larger than the sum of its proper divisors (1).

7834682215513 is an equidigital number, since it uses as much as digits as its factorization.

7834682215513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9676800, while the sum is 55.

The spelling of 7834682215513 in words is "seven trillion, eight hundred thirty-four billion, six hundred eighty-two million, two hundred fifteen thousand, five hundred thirteen".