6453831664 has 40 divisors (see below), whose sum is σ = 14462824320. Its totient is φ = 2732599488.

The previous prime is 6453831661. The next prime is 6453831679. The reversal of 6453831664 is 4661383546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6453831661) 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, 337834 + ... + 356425.

It is an arithmetic number, because the mean of its divisors is an integer number (361570608).

Almost surely, 2^6453831664 is an apocalyptic number.

It is an amenable number.

6453831664 is an abundant number, since it is smaller than the sum of its proper divisors (8008992656).

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

6453831664 is a wasteful number, since it uses less digits than its factorization.

6453831664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694357 (or 694351 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The square root of 6453831664 is about 80335.7433774033. The cubic root of 6453831664 is about 1861.8265157951.

The spelling of 6453831664 in words is "six billion, four hundred fifty-three million, eight hundred thirty-one thousand, six hundred sixty-four".