280430755021320 has 128 divisors (see below), whose sum is σ = 899963345433600. Its totient is φ = 69657026789376.

The previous prime is 280430755021309. The next prime is 280430755021349. The reversal of 280430755021320 is 23120557034082.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 708390040 + ... + 708785799.

It is an arithmetic number, because the mean of its divisors is an integer number (7030963636200).

Almost surely, 2^{280430755021320} is an apocalyptic number.

280430755021320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280430755021320 is an abundant number, since it is smaller than the sum of its proper divisors (619532590412280).

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

280430755021320 is a wasteful number, since it uses less digits than its factorization.

280430755021320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417175967 (or 1417175963 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 280430755021320 in words is "two hundred eighty trillion, four hundred thirty billion, seven hundred fifty-five million, twenty-one thousand, three hundred twenty".