280013805306 has 32 divisors (see below), whose sum is σ = 625201992000. Its totient is φ = 92895571440.

The previous prime is 280013805283. The next prime is 280013805329. The reversal of 280013805306 is 603508310082.

280013805306 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (280013805283) and next prime (280013805329).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12276381 + ... + 12299168.

It is an arithmetic number, because the mean of its divisors is an integer number (19537562250).

Almost surely, 2^280013805306 is an apocalyptic number.

280013805306 is an abundant number, since it is smaller than the sum of its proper divisors (345188186694).

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

280013805306 is a wasteful number, since it uses less digits than its factorization.

280013805306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24575771 (or 24575765 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 280013805306 in words is "two hundred eighty billion, thirteen million, eight hundred five thousand, three hundred six".