1280803282625 has 32 divisors (see below), whose sum is σ = 1630644108288. Its totient is φ = 1004124600000.

The previous prime is 1280803282609. The next prime is 1280803282637. The reversal of 1280803282625 is 5262823080821.

It is not a de Polignac number, because 1280803282625 - 2⁴ = 1280803282609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1280803282625.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1756460 + ... + 2376290.

It is an arithmetic number, because the mean of its divisors is an integer number (50957628384).

Almost surely, 2^{1280803282625} is an apocalyptic number.

It is an amenable number.

1280803282625 is a deficient number, since it is larger than the sum of its proper divisors (349840825663).

1280803282625 is an equidigital number, since it uses as much as digits as its factorization.

1280803282625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620178 (or 620168 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 1280803282625 in words is "one trillion, two hundred eighty billion, eight hundred three million, two hundred eighty-two thousand, six hundred twenty-five".