280002552780 has 24 divisors (see below), whose sum is σ = 784007147952. Its totient is φ = 74667347392.

The previous prime is 280002552743. The next prime is 280002552787. The reversal of 280002552780 is 87255200082.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (280002552787) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2333354547 + ... + 2333354666.

It is an arithmetic number, because the mean of its divisors is an integer number (32666964498).

Almost surely, 2^280002552780 is an apocalyptic number.

280002552780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280002552780 is an abundant number, since it is smaller than the sum of its proper divisors (504004595172).

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

280002552780 is a wasteful number, since it uses less digits than its factorization.

280002552780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666709225 (or 4666709223 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 280002552780 in words is "two hundred eighty billion, two million, five hundred fifty-two thousand, seven hundred eighty".