1878568920 has 48 divisors (see below), whose sum is σ = 6105350160. Its totient is φ = 500951616.

The previous prime is 1878568903. The next prime is 1878568927. The reversal of 1878568920 is 298658781.

1878568920 is a `hidden beast` number, since 1 + 8 + 78 + 568 + 9 + 2 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1878568927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2608764 + ... + 2609483.

It is an arithmetic number, because the mean of its divisors is an integer number (127194795).

Almost surely, 2^1878568920 is an apocalyptic number.

1878568920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1878568920 is an abundant number, since it is smaller than the sum of its proper divisors (4226781240).

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

1878568920 is a wasteful number, since it uses less digits than its factorization.

1878568920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218264 (or 5218257 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The square root of 1878568920 is about 43342.4609361305. The cubic root of 1878568920 is about 1233.8879158346.

The spelling of 1878568920 in words is "one billion, eight hundred seventy-eight million, five hundred sixty-eight thousand, nine hundred twenty".