278241345848 has 16 divisors (see below), whose sum is σ = 521718054000. Its totient is φ = 139116531456.

The previous prime is 278241345829. The next prime is 278241345857. The reversal of 278241345848 is 848543142872.

It is a junction number, because it is equal to n+sod(n) for n = 278241345793 and 278241345802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222233 + ... + 778376.

It is an arithmetic number, because the mean of its divisors is an integer number (32607378375).

Almost surely, 2^278241345848 is an apocalyptic number.

It is an amenable number.

278241345848 is a deficient number, since it is larger than the sum of its proper divisors (243476708152).

278241345848 is a wasteful number, since it uses less digits than its factorization.

278241345848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035374 (or 1035370 counting only the distinct ones).

The product of its digits is 13762560, while the sum is 56.

The spelling of 278241345848 in words is "two hundred seventy-eight billion, two hundred forty-one million, three hundred forty-five thousand, eight hundred forty-eight".