2664688028 has 6 divisors (see below), whose sum is σ = 4663204056. Its totient is φ = 1332344012.

The previous prime is 2664687989. The next prime is 2664688043. The reversal of 2664688028 is 8208864662.

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 as a sum of consecutive naturals, namely, 333086000 + ... + 333086007.

It is an arithmetic number, because the mean of its divisors is an integer number (777200676).

Almost surely, 2^2664688028 is an apocalyptic number.

It is an amenable number.

2664688028 is a deficient number, since it is larger than the sum of its proper divisors (1998516028).

2664688028 is a wasteful number, since it uses less digits than its factorization.

2664688028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666172011 (or 666172009 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 50.

The square root of 2664688028 is about 51620.6163078280. The cubic root of 2664688028 is about 1386.3794859808.

The spelling of 2664688028 in words is "two billion, six hundred sixty-four million, six hundred eighty-eight thousand, twenty-eight".