1878263816 has 64 divisors (see below), whose sum is σ = 4145964480. Its totient is φ = 786458880.

The previous prime is 1878263809. The next prime is 1878263843. The reversal of 1878263816 is 6183628781.

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 15 ways as a sum of consecutive naturals, for example, 670130 + ... + 672926.

It is an arithmetic number, because the mean of its divisors is an integer number (64780695).

Almost surely, 2^1878263816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1878263816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2072982240).

1878263816 is an abundant number, since it is smaller than the sum of its proper divisors (2267700664).

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

1878263816 is a wasteful number, since it uses less digits than its factorization.

1878263816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414 (or 3410 counting only the distinct ones).

The product of its digits is 774144, while the sum is 50.

The square root of 1878263816 is about 43338.9411038156. The cubic root of 1878263816 is about 1233.8211124082.

The spelling of 1878263816 in words is "one billion, eight hundred seventy-eight million, two hundred sixty-three thousand, eight hundred sixteen".