280028486468 has 12 divisors (see below), whose sum is σ = 490054777212. Its totient is φ = 140012835840.

The previous prime is 280028486357. The next prime is 280028486471. The reversal of 280028486468 is 864684820082.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 214450495744 + 65577990724 = 463088^2 + 256082^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187796 + ... + 771572.

It is an arithmetic number, because the mean of its divisors is an integer number (40837898101).

Almost surely, 2^280028486468 is an apocalyptic number.

It is an amenable number.

280028486468 is a deficient number, since it is larger than the sum of its proper divisors (210026290744).

280028486468 is a wasteful number, since it uses less digits than its factorization.

280028486468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703702 (or 703700 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 56.

The spelling of 280028486468 in words is "two hundred eighty billion, twenty-eight million, four hundred eighty-six thousand, four hundred sixty-eight".