654709690368 has 78 divisors (see below), whose sum is σ = 1891152774654. Its totient is φ = 218236551168.

The previous prime is 654709690333. The next prime is 654709690381. The reversal of 654709690368 is 863096907456.

654709690368 is a `hidden beast` number, since 65 + 47 + 0 + 96 + 90 + 368 = 666.

It can be written as a sum of positive squares in only one way, i.e., 415189499904 + 239520190464 = 644352^2 + 489408^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8843205 + ... + 8916932.

It is an arithmetic number, because the mean of its divisors is an integer number (24245548393).

Almost surely, 2^654709690368 is an apocalyptic number.

It is an amenable number.

654709690368 is an abundant number, since it is smaller than the sum of its proper divisors (1236443084286).

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

654709690368 is a wasteful number, since it uses less digits than its factorization.

654709690368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17760167 (or 17760142 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 63.

The spelling of 654709690368 in words is "six hundred fifty-four billion, seven hundred nine million, six hundred ninety thousand, three hundred sixty-eight".