7953516647 has 2 divisors, whose sum is σ = 7953516648. Its totient is φ = 7953516646.

The previous prime is 7953516553. The next prime is 7953516677. The reversal of 7953516647 is 7466153597.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7953516647 - 2¹⁰ = 7953515623 is a prime.

It is a super-2 number, since 2×7953516647² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7953516677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3976758323 + 3976758324.

It is an arithmetic number, because the mean of its divisors is an integer number (3976758324).

Almost surely, 2^7953516647 is an apocalyptic number.

7953516647 is a deficient number, since it is larger than the sum of its proper divisors (1).

7953516647 is an equidigital number, since it uses as much as digits as its factorization.

7953516647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4762800, while the sum is 53.

The square root of 7953516647 is about 89182.4906974458. The cubic root of 7953516647 is about 1996.1188605000.

The spelling of 7953516647 in words is "seven billion, nine hundred fifty-three million, five hundred sixteen thousand, six hundred forty-seven".