1878020568 has 24 divisors (see below), whose sum is σ = 5086305900. Its totient is φ = 626006832.

The previous prime is 1878020567. The next prime is 1878020597. The reversal of 1878020568 is 8650208781.

1878020568 is a `hidden beast` number, since 1 + 8 + 7 + 80 + 2 + 0 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1878020568² = 7053922507662085248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1878020567) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 13041738 + ... + 13041881.

Almost surely, 2^1878020568 is an apocalyptic number.

1878020568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1878020568 is an abundant number, since it is smaller than the sum of its proper divisors (3208285332).

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

1878020568 is a wasteful number, since it uses less digits than its factorization.

1878020568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26083631 (or 26083624 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 1878020568 is about 43336.1346684265. The cubic root of 1878020568 is about 1233.7678473535.

The spelling of 1878020568 in words is "one billion, eight hundred seventy-eight million, twenty thousand, five hundred sixty-eight".