280028079993 has 8 divisors (see below), whose sum is σ = 373422752928. Its totient is φ = 186659396864.

The previous prime is 280028079973. The next prime is 280028079997. The reversal of 280028079993 is 399970820082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 280028079993 - 2⁹ = 280028079481 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (280028079997) 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, 6472296 + ... + 6515417.

It is an arithmetic number, because the mean of its divisors is an integer number (46677844116).

Almost surely, 2^280028079993 is an apocalyptic number.

It is an amenable number.

280028079993 is a deficient number, since it is larger than the sum of its proper divisors (93394672935).

280028079993 is a wasteful number, since it uses less digits than its factorization.

280028079993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12994903.

The product of its (nonzero) digits is 3919104, while the sum is 57.

The spelling of 280028079993 in words is "two hundred eighty billion, twenty-eight million, seventy-nine thousand, nine hundred ninety-three".