1284431421494 has 24 divisors (see below), whose sum is σ = 2086319225232. Its totient is φ = 592795126560.

The previous prime is 1284431421443. The next prime is 1284431421503. The reversal of 1284431421494 is 4941241344821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18413567 + ... + 18483189.

It is an arithmetic number, because the mean of its divisors is an integer number (86929967718).

Almost surely, 2^{1284431421494} is an apocalyptic number.

1284431421494 is a deficient number, since it is larger than the sum of its proper divisors (801887803738).

1284431421494 is a wasteful number, since it uses less digits than its factorization.

1284431421494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124232 (or 124219 counting only the distinct ones).

The product of its digits is 884736, while the sum is 47.

The spelling of 1284431421494 in words is "one trillion, two hundred eighty-four billion, four hundred thirty-one million, four hundred twenty-one thousand, four hundred ninety-four".