280330047855 has 768 divisors, whose sum is σ = 678256588800. Its totient is φ = 108391219200.

The previous prime is 280330047769. The next prime is 280330047871. The reversal of 280330047855 is 558740033082.

It is not a de Polignac number, because 280330047855 - 2²⁵ = 280296493423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 280330047855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 4184030532 + ... + 4184030598.

It is an arithmetic number, because the mean of its divisors is an integer number (883146600).

Almost surely, 2^280330047855 is an apocalyptic number.

280330047855 is an abundant number, since it is smaller than the sum of its proper divisors (397926540945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

280330047855 is a wasteful number, since it uses less digits than its factorization.

280330047855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 280330047855 in words is "two hundred eighty billion, three hundred thirty million, forty-seven thousand, eight hundred fifty-five".