30768466812440 has 64 divisors (see below), whose sum is σ = 81257263732800. Its totient is φ = 10264075411968.

The previous prime is 30768466812437. The next prime is 30768466812481. The reversal of 30768466812440 is 4421866486703.

It is a self number, because there is not a number n which added to its sum of digits gives 30768466812440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1484954255 + ... + 1484974974.

It is an arithmetic number, because the mean of its divisors is an integer number (1269644745825).

Almost surely, 2^{30768466812440} is an apocalyptic number.

It is an amenable number.

30768466812440 is an abundant number, since it is smaller than the sum of its proper divisors (50488796920360).

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

30768466812440 is a wasteful number, since it uses less digits than its factorization.

30768466812440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969929284 (or 2969929280 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 59.

The spelling of 30768466812440 in words is "thirty trillion, seven hundred sixty-eight billion, four hundred sixty-six million, eight hundred twelve thousand, four hundred forty".