6465257652 has 48 divisors (see below), whose sum is σ = 17411409792. Its totient is φ = 1828924800.

The previous prime is 6465257639. The next prime is 6465257713. The reversal of 6465257652 is 2567525646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372543 + ... + 389510.

It is an arithmetic number, because the mean of its divisors is an integer number (362737704).

Almost surely, 2^6465257652 is an apocalyptic number.

It is an amenable number.

6465257652 is an abundant number, since it is smaller than the sum of its proper divisors (10946152140).

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

6465257652 is a wasteful number, since it uses less digits than its factorization.

6465257652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762168 (or 762166 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 48.

The square root of 6465257652 is about 80406.8259042726. The cubic root of 6465257652 is about 1862.9246058756.

The spelling of 6465257652 in words is "six billion, four hundred sixty-five million, two hundred fifty-seven thousand, six hundred fifty-two".