30784121381146 has 16 divisors (see below), whose sum is σ = 52773013275840. Its totient is φ = 13193136436320.

The previous prime is 30784121381141. The next prime is 30784121381147. The reversal of 30784121381146 is 64118312148703.

It is a self number, because there is not a number n which added to its sum of digits gives 30784121381146.

It is not an unprimeable number, because it can be changed into a prime (30784121381141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1517116 + ... + 7991863.

It is an arithmetic number, because the mean of its divisors is an integer number (3298313329740).

Almost surely, 2^{30784121381146} is an apocalyptic number.

30784121381146 is a deficient number, since it is larger than the sum of its proper divisors (21988891894694).

30784121381146 is a wasteful number, since it uses less digits than its factorization.

30784121381146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9740229.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 30784121381146 in words is "thirty trillion, seven hundred eighty-four billion, one hundred twenty-one million, three hundred eighty-one thousand, one hundred forty-six".