7663045668 has 12 divisors (see below), whose sum is σ = 17880439920. Its totient is φ = 2554348552.

The previous prime is 7663045657. The next prime is 7663045711. The reversal of 7663045668 is 8665403667.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 7663045668.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319293558 + ... + 319293581.

It is an arithmetic number, because the mean of its divisors is an integer number (1490036660).

Almost surely, 2^7663045668 is an apocalyptic number.

It is an amenable number.

7663045668 is an abundant number, since it is smaller than the sum of its proper divisors (10217394252).

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

7663045668 is a wasteful number, since it uses less digits than its factorization.

7663045668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638587146 (or 638587144 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The square root of 7663045668 is about 87538.8237755112. The cubic root of 7663045668 is about 1971.5167502701.

The spelling of 7663045668 in words is "seven billion, six hundred sixty-three million, forty-five thousand, six hundred sixty-eight".