1568878520 has 64 divisors (see below), whose sum is σ = 3914079840. Its totient is φ = 561139200.

The previous prime is 1568878513. The next prime is 1568878523. The reversal of 1568878520 is 258788651.

It is a super-2 number, since 2×1568878520² = 4922759621034780800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1568878523) 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 15 ways as a sum of consecutive naturals, for example, 2387 + ... + 56066.

Almost surely, 2^1568878520 is an apocalyptic number.

1568878520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1568878520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1957039920).

1568878520 is an abundant number, since it is smaller than the sum of its proper divisors (2345201320).

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

1568878520 is a wasteful number, since it uses less digits than its factorization.

1568878520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58536 (or 58532 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 50.

The square root of 1568878520 is about 39609.0711832530. The cubic root of 1568878520 is about 1161.9740762058.

It can be divided in two parts, 1568 and 878520, that added together give a palindrome (880088).

The spelling of 1568878520 in words is "one billion, five hundred sixty-eight million, eight hundred seventy-eight thousand, five hundred twenty".