2646404464 has 40 divisors (see below), whose sum is σ = 5645852928. Its totient is φ = 1191660480.

The previous prime is 2646404413. The next prime is 2646404503. The reversal of 2646404464 is 4644046462.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51432 + ... + 89095.

Almost surely, 2^2646404464 is an apocalyptic number.

It is an amenable number.

2646404464 is an abundant number, since it is smaller than the sum of its proper divisors (2999448464).

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

2646404464 is a wasteful number, since it uses less digits than its factorization.

2646404464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140653 (or 140647 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The square root of 2646404464 is about 51443.2159181364. The cubic root of 2646404464 is about 1383.2013585358.

The spelling of 2646404464 in words is "two billion, six hundred forty-six million, four hundred four thousand, four hundred sixty-four".