6505574712 has 128 divisors (see below), whose sum is σ = 20078822400. Its totient is φ = 1710471168.

The previous prime is 6505574707. The next prime is 6505574753. The reversal of 6505574712 is 2174755056.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 731589 + ... + 740427.

It is an arithmetic number, because the mean of its divisors is an integer number (156865800).

Almost surely, 2^6505574712 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 6505574712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10039411200).

6505574712 is an abundant number, since it is smaller than the sum of its proper divisors (13573247688).

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

6505574712 is a wasteful number, since it uses less digits than its factorization.

6505574712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9205 (or 9201 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 42.

The square root of 6505574712 is about 80657.1429694853. The cubic root of 6505574712 is about 1866.7889560757.

The spelling of 6505574712 in words is "six billion, five hundred five million, five hundred seventy-four thousand, seven hundred twelve".