12940409009284 has 9 divisors (see below), whose sum is σ = 22645728356727. Its totient is φ = 6470200907364.

The previous prime is 12940409009257. The next prime is 12940409009347. The reversal of 12940409009284 is 48290090404921.

The square root of 12940409009284 is 3597278.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6295237 + ... + 8093875.

Almost surely, 2^{12940409009284} is an apocalyptic number.

12940409009284 is the 3597278-th square number.

It is an amenable number.

12940409009284 is a deficient number, since it is larger than the sum of its proper divisors (9705319347443).

12940409009284 is an frugal number, since it uses more digits than its factorization.

12940409009284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597282 (or 1798641 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 12940409009284 in words is "twelve trillion, nine hundred forty billion, four hundred nine million, nine thousand, two hundred eighty-four".