7839775660 has 12 divisors (see below), whose sum is σ = 16463528928. Its totient is φ = 3135910256.

The previous prime is 7839775637. The next prime is 7839775661. The reversal of 7839775660 is 665779387.

It is a super-2 number, since 2×7839775660² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7839775595 and 7839775604.

It is not an unprimeable number, because it can be changed into a prime (7839775661) 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 3 ways as a sum of consecutive naturals, for example, 195994372 + ... + 195994411.

It is an arithmetic number, because the mean of its divisors is an integer number (1371960744).

Almost surely, 2^7839775660 is an apocalyptic number.

It is an amenable number.

7839775660 is an abundant number, since it is smaller than the sum of its proper divisors (8623753268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7839775660 is a wasteful number, since it uses less digits than its factorization.

7839775660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391988792 (or 391988790 counting only the distinct ones).

The product of its (nonzero) digits is 13335840, while the sum is 58.

The square root of 7839775660 is about 88542.5076446336. The cubic root of 7839775660 is about 1986.5578280815.

The spelling of 7839775660 in words is "seven billion, eight hundred thirty-nine million, seven hundred seventy-five thousand, six hundred sixty".