1568828478 has 16 divisors (see below), whose sum is σ = 3585893760. Its totient is φ = 448236696.

The previous prime is 1568828477. The next prime is 1568828489. The reversal of 1568828478 is 8748288651.

1568828478 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1568828478² = 4922445586767592968, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1568828477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18676488 + ... + 18676571.

It is an arithmetic number, because the mean of its divisors is an integer number (224118360).

Almost surely, 2^1568828478 is an apocalyptic number.

1568828478 is an abundant number, since it is smaller than the sum of its proper divisors (2017065282).

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

1568828478 is a wasteful number, since it uses less digits than its factorization.

1568828478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37353071.

The product of its digits is 6881280, while the sum is 57.

The square root of 1568828478 is about 39608.4394794847. The cubic root of 1568828478 is about 1161.9617217067.

The spelling of 1568828478 in words is "one billion, five hundred sixty-eight million, eight hundred twenty-eight thousand, four hundred seventy-eight".