1678212275 has 12 divisors (see below), whose sum is σ = 2106057912. Its totient is φ = 1326392640.

The previous prime is 1678212253. The next prime is 1678212359. The reversal of 1678212275 is 5722128761.

It is not a de Polignac number, because 1678212275 - 2¹⁶ = 1678146739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402314 + ... + 406463.

It is an arithmetic number, because the mean of its divisors is an integer number (175504826).

Almost surely, 2^1678212275 is an apocalyptic number.

1678212275 is a deficient number, since it is larger than the sum of its proper divisors (427845637).

1678212275 is an equidigital number, since it uses as much as digits as its factorization.

1678212275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808870 (or 808865 counting only the distinct ones).

The product of its digits is 94080, while the sum is 41.

The square root of 1678212275 is about 40965.9892471792. The cubic root of 1678212275 is about 1188.3625703440.

The spelling of 1678212275 in words is "one billion, six hundred seventy-eight million, two hundred twelve thousand, two hundred seventy-five".