7698787660 has 24 divisors (see below), whose sum is σ = 16169818896. Its totient is φ = 3079064640.

The previous prime is 7698787627. The next prime is 7698787661. The reversal of 7698787660 is 667878967.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7698787592 and 7698787601.

It is not an unprimeable number, because it can be changed into a prime (7698787661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135090 + ... + 183430.

It is an arithmetic number, because the mean of its divisors is an integer number (673742454).

Almost surely, 2^7698787660 is an apocalyptic number.

It is an amenable number.

7698787660 is an abundant number, since it is smaller than the sum of its proper divisors (8471031236).

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

7698787660 is a wasteful number, since it uses less digits than its factorization.

7698787660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56313 (or 56311 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 64.

The square root of 7698787660 is about 87742.7356537281. The cubic root of 7698787660 is about 1974.5771810781.

The spelling of 7698787660 in words is "seven billion, six hundred ninety-eight million, seven hundred eighty-seven thousand, six hundred sixty".