280728874294 has 16 divisors (see below), whose sum is σ = 460256257296. Its totient is φ = 127359107200.

The previous prime is 280728874291. The next prime is 280728874337. The reversal of 280728874294 is 492478827082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280728874291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12234607 + ... + 12257530.

It is an arithmetic number, because the mean of its divisors is an integer number (28766016081).

Almost surely, 2^280728874294 is an apocalyptic number.

280728874294 is a deficient number, since it is larger than the sum of its proper divisors (179527383002).

280728874294 is a wasteful number, since it uses less digits than its factorization.

280728874294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24492671.

The product of its (nonzero) digits is 28901376, while the sum is 61.

The spelling of 280728874294 in words is "two hundred eighty billion, seven hundred twenty-eight million, eight hundred seventy-four thousand, two hundred ninety-four".