280871916412 has 48 divisors (see below), whose sum is σ = 535316862528. Its totient is φ = 128407403520.

The previous prime is 280871916401. The next prime is 280871916439. The reversal of 280871916412 is 214619178082.

It is a super-3 number, since 3×280871916412³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1578633 + ... + 1747519.

It is an arithmetic number, because the mean of its divisors is an integer number (11152434636).

Almost surely, 2^280871916412 is an apocalyptic number.

It is an amenable number.

280871916412 is a deficient number, since it is larger than the sum of its proper divisors (254444946116).

280871916412 is a wasteful number, since it uses less digits than its factorization.

280871916412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169606 (or 169604 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 280871916412 in words is "two hundred eighty billion, eight hundred seventy-one million, nine hundred sixteen thousand, four hundred twelve".