1878587660 has 12 divisors (see below), whose sum is σ = 3945034128. Its totient is φ = 751435056.

The previous prime is 1878587657. The next prime is 1878587681. The reversal of 1878587660 is 667858781.

It is a junction number, because it is equal to n+sod(n) for n = 1878587596 and 1878587605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46964672 + ... + 46964711.

It is an arithmetic number, because the mean of its divisors is an integer number (328752844).

Almost surely, 2^1878587660 is an apocalyptic number.

1878587660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1878587660 is an abundant number, since it is smaller than the sum of its proper divisors (2066446468).

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

1878587660 is a wasteful number, since it uses less digits than its factorization.

1878587660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93929392 (or 93929390 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 56.

The square root of 1878587660 is about 43342.6771208240. The cubic root of 1878587660 is about 1233.8920187774.

The spelling of 1878587660 in words is "one billion, eight hundred seventy-eight million, five hundred eighty-seven thousand, six hundred sixty".