280420004866 has 8 divisors (see below), whose sum is σ = 430412100624. Its totient is φ = 136949304660.

The previous prime is 280420004861. The next prime is 280420004867. The reversal of 280420004866 is 668400024082.

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

It is not an unprimeable number, because it can be changed into a prime (280420004861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630348780 + ... + 1630348951.

It is an arithmetic number, because the mean of its divisors is an integer number (53801512578).

Almost surely, 2^280420004866 is an apocalyptic number.

280420004866 is a deficient number, since it is larger than the sum of its proper divisors (149992095758).

280420004866 is a wasteful number, since it uses less digits than its factorization.

280420004866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260697776.

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 280420004866 in words is "two hundred eighty billion, four hundred twenty million, four thousand, eight hundred sixty-six".