7766785485 has 48 divisors (see below), whose sum is σ = 13763243520. Its totient is φ = 4049913600.

The previous prime is 7766785459. The next prime is 7766785487. The reversal of 7766785485 is 5845876677.

7766785485 is a `hidden beast` number, since 7 + 76 + 6 + 7 + 85 + 485 = 666.

It is not a de Polignac number, because 7766785485 - 2¹⁵ = 7766752717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7766785487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3808096 + ... + 3810134.

It is an arithmetic number, because the mean of its divisors is an integer number (286734240).

Almost surely, 2^7766785485 is an apocalyptic number.

It is an amenable number.

7766785485 is a deficient number, since it is larger than the sum of its proper divisors (5996458035).

7766785485 is a wasteful number, since it uses less digits than its factorization.

7766785485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898 (or 3895 counting only the distinct ones).

The product of its digits is 79027200, while the sum is 63.

The square root of 7766785485 is about 88129.3678917533. The cubic root of 7766785485 is about 1980.3734870899.

The spelling of 7766785485 in words is "seven billion, seven hundred sixty-six million, seven hundred eighty-five thousand, four hundred eighty-five".