6450656464 has 40 divisors (see below), whose sum is σ = 14293960128. Its totient is φ = 2762561280.

The previous prime is 6450656449. The next prime is 6450656467. The reversal of 6450656464 is 4646560546.

It is a super-2 number, since 2×6450656464² = 83221937633089966592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6450656467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139644 + ... + 180004.

Almost surely, 2^6450656464 is an apocalyptic number.

It is an amenable number.

6450656464 is an abundant number, since it is smaller than the sum of its proper divisors (7843303664).

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

6450656464 is a wasteful number, since it uses less digits than its factorization.

6450656464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41803 (or 41797 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 46.

The square root of 6450656464 is about 80315.9788834078. The cubic root of 6450656464 is about 1861.5211343507.

The spelling of 6450656464 in words is "six billion, four hundred fifty million, six hundred fifty-six thousand, four hundred sixty-four".