6765577505 has 4 divisors (see below), whose sum is σ = 8118693012. Its totient is φ = 5412462000.

The previous prime is 6765577493. The next prime is 6765577517. The reversal of 6765577505 is 5057755676.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (6765577493) and next prime (6765577517).

It can be written as a sum of positive squares in 2 ways, for example, as 4126906081 + 2638671424 = 64241^2 + 51368^2 .

It is not a de Polignac number, because 6765577505 - 2⁸ = 6765577249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676557746 + ... + 676557755.

It is an arithmetic number, because the mean of its divisors is an integer number (2029673253).

Almost surely, 2^6765577505 is an apocalyptic number.

It is an amenable number.

6765577505 is a deficient number, since it is larger than the sum of its proper divisors (1353115507).

6765577505 is a wasteful number, since it uses less digits than its factorization.

6765577505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353115506.

The product of its (nonzero) digits is 7717500, while the sum is 53.

The square root of 6765577505 is about 82253.1306699022. The cubic root of 6765577505 is about 1891.3342672843.

The spelling of 6765577505 in words is "six billion, seven hundred sixty-five million, five hundred seventy-seven thousand, five hundred five".