6457574660 has 48 divisors (see below), whose sum is σ = 14019543552. Its totient is φ = 2495923200.

The previous prime is 6457574657. The next prime is 6457574689. The reversal of 6457574660 is 664757546.

It is a junction number, because it is equal to n+sod(n) for n = 6457574599 and 6457574608.

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, 420884 + ... + 435956.

It is an arithmetic number, because the mean of its divisors is an integer number (292073824).

Almost surely, 2^6457574660 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 6457574660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7009771776).

6457574660 is an abundant number, since it is smaller than the sum of its proper divisors (7561968892).

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

6457574660 is a wasteful number, since it uses less digits than its factorization.

6457574660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15804 (or 15802 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 50.

The square root of 6457574660 is about 80359.0359573832. The cubic root of 6457574660 is about 1862.1863775938.

The spelling of 6457574660 in words is "six billion, four hundred fifty-seven million, five hundred seventy-four thousand, six hundred sixty".