1678085263 has 8 divisors (see below), whose sum is σ = 1770279920. Its totient is φ = 1586278080.

The previous prime is 1678085243. The next prime is 1678085291. The reversal of 1678085263 is 3625808761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1678085263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678085243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 87948 + ... + 105313.

It is an arithmetic number, because the mean of its divisors is an integer number (221284990).

Almost surely, 2^1678085263 is an apocalyptic number.

1678085263 is a deficient number, since it is larger than the sum of its proper divisors (92194657).

1678085263 is a wasteful number, since it uses less digits than its factorization.

1678085263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193737.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 1678085263 is about 40964.4390050688. The cubic root of 1678085263 is about 1188.3325900058.

The spelling of 1678085263 in words is "one billion, six hundred seventy-eight million, eighty-five thousand, two hundred sixty-three".