6745415517 has 12 divisors (see below), whose sum is σ = 9747060544. Its totient is φ = 4495244040.

The previous prime is 6745415507. The next prime is 6745415531. The reversal of 6745415517 is 7155145476.

6745415517 is a `hidden beast` number, since 6 + 74 + 54 + 15 + 517 = 666.

6745415517 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-6745415517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6745415507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116263 + ... + 164340.

Almost surely, 2^6745415517 is an apocalyptic number.

It is an amenable number.

6745415517 is a deficient number, since it is larger than the sum of its proper divisors (3001645027).

6745415517 is a wasteful number, since it uses less digits than its factorization.

6745415517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283280 (or 283277 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 6745415517 is about 82130.4786117797. The cubic root of 6745415517 is about 1889.4536196719.

The spelling of 6745415517 in words is "six billion, seven hundred forty-five million, four hundred fifteen thousand, five hundred seventeen".