7700685540 has 48 divisors (see below), whose sum is σ = 21664144320. Its totient is φ = 2043780480.

The previous prime is 7700685533. The next prime is 7700685571. The reversal of 7700685540 is 455860077.

It is a junction number, because it is equal to n+sod(n) for n = 7700685492 and 7700685501.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 291475 + ... + 316794.

It is an arithmetic number, because the mean of its divisors is an integer number (451336340).

Almost surely, 2^7700685540 is an apocalyptic number.

It is an amenable number.

7700685540 is an abundant number, since it is smaller than the sum of its proper divisors (13963458780).

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

7700685540 is a wasteful number, since it uses less digits than its factorization.

7700685540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608492 (or 608490 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 7700685540 is about 87753.5500136604. The cubic root of 7700685540 is about 1974.7394231872.

The spelling of 7700685540 in words is "seven billion, seven hundred million, six hundred eighty-five thousand, five hundred forty".