6135478469 has 2 divisors, whose sum is σ = 6135478470. Its totient is φ = 6135478468.

The previous prime is 6135478463. The next prime is 6135478471. The reversal of 6135478469 is 9648745316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4040127844 + 2095350625 = 63562^2 + 45775^2 .

It is a cyclic number.

It is not a de Polignac number, because 6135478469 - 2⁸ = 6135478213 is a prime.

It is a super-2 number, since 2×6135478469² = 75288192087125167922, which contains 22 as substring.

Together with 6135478471, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6135478469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6135478463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3067739234 + 3067739235.

It is an arithmetic number, because the mean of its divisors is an integer number (3067739235).

Almost surely, 2^6135478469 is an apocalyptic number.

It is an amenable number.

6135478469 is a deficient number, since it is larger than the sum of its proper divisors (1).

6135478469 is an equidigital number, since it uses as much as digits as its factorization.

6135478469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 53.

The square root of 6135478469 is about 78329.2950881086. The cubic root of 6135478469 is about 1830.6956325984.

The spelling of 6135478469 in words is "six billion, one hundred thirty-five million, four hundred seventy-eight thousand, four hundred sixty-nine".