1678386860 has 24 divisors (see below), whose sum is σ = 3526234656. Its totient is φ = 671045760.

The previous prime is 1678386847. The next prime is 1678386911. The reversal of 1678386860 is 686838761.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28064 + ... + 64376.

It is an arithmetic number, because the mean of its divisors is an integer number (146926444).

Almost surely, 2^1678386860 is an apocalyptic number.

1678386860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1678386860 is an abundant number, since it is smaller than the sum of its proper divisors (1847847796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1678386860 is a wasteful number, since it uses less digits than its factorization.

1678386860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38633 (or 38631 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 1678386860 is about 40968.1200447372. The cubic root of 1678386860 is about 1188.4037775040.

The spelling of 1678386860 in words is "one billion, six hundred seventy-eight million, three hundred eighty-six thousand, eight hundred sixty".