30942261378 has 54 divisors (see below), whose sum is σ = 78000297219. Its totient is φ = 8839153512.

The previous prime is 30942261367. The next prime is 30942261397. The reversal of 30942261378 is 87316224903.

30942261378 is a `hidden beast` number, since 3 + 0 + 9 + 4 + 22 + 613 + 7 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15471130689 + 15471130689 = 124383^2 + 124383^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=124383.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5221125 + ... + 5227047.

Almost surely, 2^30942261378 is an apocalyptic number.

30942261378 is an abundant number, since it is smaller than the sum of its proper divisors (47058035841).

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

30942261378 is an frugal number, since it uses more digits than its factorization.

30942261378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11868 (or 5935 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 30942261378 in words is "thirty billion, nine hundred forty-two million, two hundred sixty-one thousand, three hundred seventy-eight".