280214987648 has 16 divisors (see below), whose sum is σ = 558240795960. Its totient is φ = 140107493760.

The previous prime is 280214987629. The next prime is 280214987651. The reversal of 280214987648 is 846789412082.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094589668 + ... + 1094589923.

Almost surely, 2^280214987648 is an apocalyptic number.

It is an amenable number.

280214987648 is a deficient number, since it is larger than the sum of its proper divisors (278025808312).

280214987648 is an equidigital number, since it uses as much as digits as its factorization.

280214987648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189179605 (or 2189179593 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 59.

The spelling of 280214987648 in words is "two hundred eighty billion, two hundred fourteen million, nine hundred eighty-seven thousand, six hundred forty-eight".