5657447928 has 192 divisors, whose sum is σ = 16000538400. Its totient is φ = 1665100800.

The previous prime is 5657447927. The next prime is 5657447941. The reversal of 5657447928 is 8297447565.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5657447927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19308550 + ... + 19308842.

Almost surely, 2^5657447928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5657447928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8000269200).

5657447928 is an abundant number, since it is smaller than the sum of its proper divisors (10343090472).

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

5657447928 is a wasteful number, since it uses less digits than its factorization.

5657447928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 479 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 57.

The square root of 5657447928 is about 75216.0084556473. The cubic root of 5657447928 is about 1781.8597664376.

The spelling of 5657447928 in words is "five billion, six hundred fifty-seven million, four hundred forty-seven thousand, nine hundred twenty-eight".