30940655688 has 24 divisors (see below), whose sum is σ = 83797609350. Its totient is φ = 10313551872.

The previous prime is 30940655663. The next prime is 30940655731. The reversal of 30940655688 is 88655604903.

It is a happy number.

30940655688 is a `hidden beast` number, since 3 + 0 + 9 + 4 + 0 + 6 + 556 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29267682084 + 1672973604 = 171078^2 + 40902^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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, 214865593 + ... + 214865736.

Almost surely, 2^30940655688 is an apocalyptic number.

It is an amenable number.

30940655688 is an abundant number, since it is smaller than the sum of its proper divisors (52856953662).

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

30940655688 is a wasteful number, since it uses less digits than its factorization.

30940655688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429731341 (or 429731334 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 30940655688 in words is "thirty billion, nine hundred forty million, six hundred fifty-five thousand, six hundred eighty-eight".