7730885385 has 24 divisors (see below), whose sum is σ = 13402920960. Its totient is φ = 4122302112.

The previous prime is 7730885377. The next prime is 7730885389. The reversal of 7730885385 is 5835880377.

7730885385 is a `hidden beast` number, since 77 + 30 + 8 + 8 + 538 + 5 = 666.

It is not a de Polignac number, because 7730885385 - 2³ = 7730885377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7730885389) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252792 + ... + 281718.

It is an arithmetic number, because the mean of its divisors is an integer number (558455040).

Almost surely, 2^7730885385 is an apocalyptic number.

It is an amenable number.

7730885385 is a deficient number, since it is larger than the sum of its proper divisors (5672035575).

7730885385 is a wasteful number, since it uses less digits than its factorization.

7730885385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34877 (or 34874 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The square root of 7730885385 is about 87925.4535672123. The cubic root of 7730885385 is about 1977.3175068387.

The spelling of 7730885385 in words is "seven billion, seven hundred thirty million, eight hundred eighty-five thousand, three hundred eighty-five".