6765917385617 has 4 divisors (see below), whose sum is σ = 7286372569140. Its totient is φ = 6245462202096.

The previous prime is 6765917385569. The next prime is 6765917385631. The reversal of 6765917385617 is 7165837195676.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 474203013376 + 6291714372241 = 688624^2 + 2508329^2 .

It is not a de Polignac number, because 6765917385617 - 2³⁸ = 6491039478673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6765917385317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260227591742 + ... + 260227591767.

It is an arithmetic number, because the mean of its divisors is an integer number (1821593142285).

Almost surely, 2^{6765917385617} is an apocalyptic number.

It is an amenable number.

6765917385617 is a deficient number, since it is larger than the sum of its proper divisors (520455183523).

6765917385617 is a wasteful number, since it uses less digits than its factorization.

6765917385617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520455183522.

The product of its digits is 400075200, while the sum is 71.

The spelling of 6765917385617 in words is "six trillion, seven hundred sixty-five billion, nine hundred seventeen million, three hundred eighty-five thousand, six hundred seventeen".