2663780464 has 20 divisors (see below), whose sum is σ = 5212177560. Its totient is φ = 1318702400.

The previous prime is 2663780401. The next prime is 2663780467. The reversal of 2663780464 is 4640873662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2663780467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822574 + ... + 825805.

It is an arithmetic number, because the mean of its divisors is an integer number (260608878).

Almost surely, 2^2663780464 is an apocalyptic number.

It is an amenable number.

2663780464 is a deficient number, since it is larger than the sum of its proper divisors (2548397096).

2663780464 is a wasteful number, since it uses less digits than its factorization.

2663780464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648488 (or 1648482 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 46.

The square root of 2663780464 is about 51611.8248466376. The cubic root of 2663780464 is about 1386.2220728087. Note that the first 3 decimals are identical.

The spelling of 2663780464 in words is "two billion, six hundred sixty-three million, seven hundred eighty thousand, four hundred sixty-four".