30889784894 has 16 divisors (see below), whose sum is σ = 47836293120. Its totient is φ = 14944498680.

The previous prime is 30889784879. The next prime is 30889784911. The reversal of 30889784894 is 49848798803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445247 + ... + 509925.

It is an arithmetic number, because the mean of its divisors is an integer number (2989768320).

Almost surely, 2^30889784894 is an apocalyptic number.

30889784894 is a deficient number, since it is larger than the sum of its proper divisors (16946508226).

30889784894 is a wasteful number, since it uses less digits than its factorization.

30889784894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72415.

The product of its (nonzero) digits is 111476736, while the sum is 68.

The spelling of 30889784894 in words is "thirty billion, eight hundred eighty-nine million, seven hundred eighty-four thousand, eight hundred ninety-four".