6427571472 has 180 divisors, whose sum is σ = 21003304140. Its totient is φ = 1829592576.

The previous prime is 6427571471. The next prime is 6427571477. The reversal of 6427571472 is 2741757246.

6427571472 is a `hidden beast` number, since 6 + 4 + 2 + 7 + 571 + 4 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3853429776 + 2574141696 = 62076^2 + 50736^2 .

Its product of digits (658560) is a multiple of the sum of its prime factors (3430).

It is not an unprimeable number, because it can be changed into a prime (6427571471) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2065854 + ... + 2068962.

It is an arithmetic number, because the mean of its divisors is an integer number (116685023).

Almost surely, 2^6427571472 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 6427571472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10501652070).

6427571472 is an abundant number, since it is smaller than the sum of its proper divisors (14575732668).

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

6427571472 is a wasteful number, since it uses less digits than its factorization.

6427571472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430 (or 3414 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 6427571472 is about 80172.1365063948. The cubic root of 6427571472 is about 1859.2978688743.

The spelling of 6427571472 in words is "six billion, four hundred twenty-seven million, five hundred seventy-one thousand, four hundred seventy-two".