30228439045956 has 12 divisors (see below), whose sum is σ = 70533024440592. Its totient is φ = 10076146348648.

The previous prime is 30228439045921. The next prime is 30228439045967. The reversal of 30228439045956 is 65954093482203.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 30228439045956.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1259518293570 + ... + 1259518293593.

It is an arithmetic number, because the mean of its divisors is an integer number (5877752036716).

Almost surely, 2^{30228439045956} is an apocalyptic number.

It is an amenable number.

30228439045956 is an abundant number, since it is smaller than the sum of its proper divisors (40304585394636).

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

30228439045956 is a wasteful number, since it uses less digits than its factorization.

30228439045956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519036587170 (or 2519036587168 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 60.

The spelling of 30228439045956 in words is "thirty trillion, two hundred twenty-eight billion, four hundred thirty-nine million, forty-five thousand, nine hundred fifty-six".