1678768226 has 8 divisors (see below), whose sum is σ = 2520156240. Its totient is φ = 838716148.

The previous prime is 1678768219. The next prime is 1678768277. The reversal of 1678768226 is 6228678761.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330836 + ... + 335871.

It is an arithmetic number, because the mean of its divisors is an integer number (315019530).

Almost surely, 2^1678768226 is an apocalyptic number.

1678768226 is a deficient number, since it is larger than the sum of its proper divisors (841388014).

1678768226 is a wasteful number, since it uses less digits than its factorization.

1678768226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667968.

The product of its digits is 2709504, while the sum is 53.

The square root of 1678768226 is about 40972.7742043421. The cubic root of 1678768226 is about 1188.4937810829.

The spelling of 1678768226 in words is "one billion, six hundred seventy-eight million, seven hundred sixty-eight thousand, two hundred twenty-six".