280445425450 has 48 divisors (see below), whose sum is σ = 551124324000. Its totient is φ = 105878888640.

The previous prime is 280445425439. The next prime is 280445425459. The reversal of 280445425450 is 54524544082.

It is a junction number, because it is equal to n+sod(n) for n = 280445425397 and 280445425406.

It is not an unprimeable number, because it can be changed into a prime (280445425459) 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 23 ways as a sum of consecutive naturals, for example, 293160 + ... + 804259.

It is an arithmetic number, because the mean of its divisors is an integer number (11481756750).

Almost surely, 2^280445425450 is an apocalyptic number.

280445425450 is a deficient number, since it is larger than the sum of its proper divisors (270678898550).

280445425450 is a wasteful number, since it uses less digits than its factorization.

280445425450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097719 (or 1097714 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 43.

The spelling of 280445425450 in words is "two hundred eighty billion, four hundred forty-five million, four hundred twenty-five thousand, four hundred fifty".