280479980312 has 32 divisors (see below), whose sum is σ = 605616549120. Its totient is φ = 119288101920.

The previous prime is 280479980309. The next prime is 280479980323. The reversal of 280479980312 is 213089974082.

It is a super-3 number, since 3×280479980312³ (a number of 35 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19109348 + ... + 19124019.

It is an arithmetic number, because the mean of its divisors is an integer number (18925517160).

Almost surely, 2^280479980312 is an apocalyptic number.

It is an amenable number.

280479980312 is an abundant number, since it is smaller than the sum of its proper divisors (325136568808).

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

280479980312 is a wasteful number, since it uses less digits than its factorization.

280479980312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38233511 (or 38233507 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 280479980312 in words is "two hundred eighty billion, four hundred seventy-nine million, nine hundred eighty thousand, three hundred twelve".