2663134021 has 4 divisors (see below), whose sum is σ = 2688023232. Its totient is φ = 2638244812.

The previous prime is 2663134013. The next prime is 2663134043. The reversal of 2663134021 is 1204313662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2663134021 - 2³ = 2663134013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2663134421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12444445 + ... + 12444658.

It is an arithmetic number, because the mean of its divisors is an integer number (672005808).

Almost surely, 2^2663134021 is an apocalyptic number.

It is an amenable number.

2663134021 is a deficient number, since it is larger than the sum of its proper divisors (24889211).

2663134021 is a wasteful number, since it uses less digits than its factorization.

2663134021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24889210.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2663134021 is about 51605.5619192350. The cubic root of 2663134021 is about 1386.1099281749.

Adding to 2663134021 its reverse (1204313662), we get a palindrome (3867447683).

The spelling of 2663134021 in words is "two billion, six hundred sixty-three million, one hundred thirty-four thousand, twenty-one".