1428986478684 has 24 divisors (see below), whose sum is σ = 3334452283008. Its totient is φ = 476307326320.

The previous prime is 1428986478641. The next prime is 1428986478691. The reversal of 1428986478684 is 4868746898241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2409402 + ... + 2943329.

It is an arithmetic number, because the mean of its divisors is an integer number (138935511792).

Almost surely, 2^{1428986478684} is an apocalyptic number.

It is an amenable number.

1428986478684 is an abundant number, since it is smaller than the sum of its proper divisors (1905465804324).

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

1428986478684 is a wasteful number, since it uses less digits than its factorization.

1428986478684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374985 (or 5374983 counting only the distinct ones).

The product of its digits is 1189085184, while the sum is 75.

The spelling of 1428986478684 in words is "one trillion, four hundred twenty-eight billion, nine hundred eighty-six million, four hundred seventy-eight thousand, six hundred eighty-four".