1678255456 has 12 divisors (see below), whose sum is σ = 3304065492. Its totient is φ = 839127712.

The previous prime is 1678255417. The next prime is 1678255457. The reversal of 1678255456 is 6545528761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678255457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26222710 + ... + 26222773.

It is an arithmetic number, because the mean of its divisors is an integer number (275338791).

Almost surely, 2^1678255456 is an apocalyptic number.

1678255456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1678255456 is a deficient number, since it is larger than the sum of its proper divisors (1625810036).

1678255456 is an equidigital number, since it uses as much as digits as its factorization.

1678255456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52445493 (or 52445485 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 49.

The square root of 1678255456 is about 40966.5162785414. The cubic root of 1678255456 is about 1188.3727625874.

The spelling of 1678255456 in words is "one billion, six hundred seventy-eight million, two hundred fifty-five thousand, four hundred fifty-six".