1878398116 has 12 divisors (see below), whose sum is σ = 3756796288. Its totient is φ = 805027752.

The previous prime is 1878398077. The next prime is 1878398147. The reversal of 1878398116 is 6118938781.

1878398116 is an admirable number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33542796 + ... + 33542851.

Almost surely, 2^1878398116 is an apocalyptic number.

It is an amenable number.

1878398116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1878398116 is a wasteful number, since it uses less digits than its factorization.

1878398116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67085658 (or 67085656 counting only the distinct ones).

The product of its digits is 580608, while the sum is 52.

The square root of 1878398116 is about 43340.4904909947. The cubic root of 1878398116 is about 1233.8505186831.

The spelling of 1878398116 in words is "one billion, eight hundred seventy-eight million, three hundred ninety-eight thousand, one hundred sixteen".