1568473680 has 80 divisors (see below), whose sum is σ = 4870116864. Its totient is φ = 417584640.

The previous prime is 1568473667. The next prime is 1568473747. The reversal of 1568473680 is 863748651.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a Sastry number since concatenated with its successor gives a square.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153697 + ... + 163583.

Almost surely, 2^1568473680 is an apocalyptic number.

1568473680 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 1568473680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2435058432).

1568473680 is an abundant number, since it is smaller than the sum of its proper divisors (3301643184).

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

1568473680 is a wasteful number, since it uses less digits than its factorization.

1568473680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10564 (or 10558 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 1568473680 is about 39603.9604080198. The cubic root of 1568473680 is about 1161.8741207180.

The spelling of 1568473680 in words is "one billion, five hundred sixty-eight million, four hundred seventy-three thousand, six hundred eighty".