1678892612 has 12 divisors (see below), whose sum is σ = 3017469420. Its totient is φ = 816758496.

The previous prime is 1678892603. The next prime is 1678892639. The reversal of 1678892612 is 2162988761.

It can be written as a sum of positive squares in 2 ways, for example, as 969948736 + 708943876 = 31144^2 + 26626^2 .

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, 5671787 + ... + 5672082.

It is an arithmetic number, because the mean of its divisors is an integer number (251455785).

Almost surely, 2^1678892612 is an apocalyptic number.

It is an amenable number.

1678892612 is a deficient number, since it is larger than the sum of its proper divisors (1338576808).

1678892612 is a wasteful number, since it uses less digits than its factorization.

1678892612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11343910 (or 11343908 counting only the distinct ones).

The product of its digits is 580608, while the sum is 50.

The square root of 1678892612 is about 40974.2920866243. The cubic root of 1678892612 is about 1188.5231336233.

The spelling of 1678892612 in words is "one billion, six hundred seventy-eight million, eight hundred ninety-two thousand, six hundred twelve".