6948147517 has 2 divisors, whose sum is σ = 6948147518. Its totient is φ = 6948147516.

The previous prime is 6948147463. The next prime is 6948147541. The reversal of 6948147517 is 7157418496.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4940121796 + 2008025721 = 70286^2 + 44811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6948147517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6948147317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3474073758 + 3474073759.

It is an arithmetic number, because the mean of its divisors is an integer number (3474073759).

Almost surely, 2^6948147517 is an apocalyptic number.

It is an amenable number.

6948147517 is a deficient number, since it is larger than the sum of its proper divisors (1).

6948147517 is an equidigital number, since it uses as much as digits as its factorization.

6948147517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 52.

The square root of 6948147517 is about 83355.5488075029. The cubic root of 6948147517 is about 1908.1961274546.

The spelling of 6948147517 in words is "six billion, nine hundred forty-eight million, one hundred forty-seven thousand, five hundred seventeen".