6340472617 has 2 divisors, whose sum is σ = 6340472618. Its totient is φ = 6340472616.

The previous prime is 6340472603. The next prime is 6340472639. The reversal of 6340472617 is 7162740436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4422383001 + 1918089616 = 66501^2 + 43796^2 .

It is a cyclic number.

It is not a de Polignac number, because 6340472617 - 2¹⁵ = 6340439849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6340472617.

It is not a weakly prime, because it can be changed into another prime (6340472417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170236308 + 3170236309.

It is an arithmetic number, because the mean of its divisors is an integer number (3170236309).

Almost surely, 2^6340472617 is an apocalyptic number.

It is an amenable number.

6340472617 is a deficient number, since it is larger than the sum of its proper divisors (1).

6340472617 is an equidigital number, since it uses as much as digits as its factorization.

6340472617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 6340472617 is about 79627.0846948449. The cubic root of 6340472617 is about 1850.8613098678.

The spelling of 6340472617 in words is "six billion, three hundred forty million, four hundred seventy-two thousand, six hundred seventeen".