280764204086 has 4 divisors (see below), whose sum is σ = 421146306132. Its totient is φ = 140382102042.

The previous prime is 280764204073. The next prime is 280764204101. The reversal of 280764204086 is 680402467082.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 280764204086.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 70191051020 + ... + 70191051023.

It is an arithmetic number, because the mean of its divisors is an integer number (105286576533).

Almost surely, 2^280764204086 is an apocalyptic number.

280764204086 is a deficient number, since it is larger than the sum of its proper divisors (140382102046).

280764204086 is a wasteful number, since it uses less digits than its factorization.

280764204086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140382102045.

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 280764204086 in words is "two hundred eighty billion, seven hundred sixty-four million, two hundred four thousand, eighty-six".