280028903372 has 12 divisors (see below), whose sum is σ = 494546458560. Its totient is φ = 138729915216.

The previous prime is 280028903339. The next prime is 280028903449. The reversal of 280028903372 is 273309820082.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321133628 + ... + 321134499.

It is an arithmetic number, because the mean of its divisors is an integer number (41212204880).

Almost surely, 2^280028903372 is an apocalyptic number.

It is an amenable number.

280028903372 is a deficient number, since it is larger than the sum of its proper divisors (214517555188).

280028903372 is a wasteful number, since it uses less digits than its factorization.

280028903372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642268240 (or 642268238 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 280028903372 in words is "two hundred eighty billion, twenty-eight million, nine hundred three thousand, three hundred seventy-two".