2643456364 has 12 divisors (see below), whose sum is σ = 4626473488. Its totient is φ = 1321606800.

The previous prime is 2643456353. The next prime is 2643456419. The reversal of 2643456364 is 4636543462.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2643456364.

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 3 ways as a sum of consecutive naturals, for example, 33649 + ... + 80119.

Almost surely, 2^2643456364 is an apocalyptic number.

It is an amenable number.

2643456364 is a deficient number, since it is larger than the sum of its proper divisors (1983017124).

2643456364 is a wasteful number, since it uses less digits than its factorization.

2643456364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60696 (or 60694 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 43.

The square root of 2643456364 is about 51414.5540095409. The cubic root of 2643456364 is about 1382.6875379728.

The spelling of 2643456364 in words is "two billion, six hundred forty-three million, four hundred fifty-six thousand, three hundred sixty-four".