2668126388 has 12 divisors (see below), whose sum is σ = 4795416612. Its totient is φ = 1298007360.

The previous prime is 2668126367. The next prime is 2668126399. The reversal of 2668126388 is 8836218662.

It can be written as a sum of positive squares in 2 ways, for example, as 1947633424 + 720492964 = 44132^2 + 26842^2 .

It is a congruent number.

It is an unprimeable number.

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, 9013793 + ... + 9014088.

It is an arithmetic number, because the mean of its divisors is an integer number (399618051).

Almost surely, 2^2668126388 is an apocalyptic number.

It is an amenable number.

2668126388 is a deficient number, since it is larger than the sum of its proper divisors (2127290224).

2668126388 is a wasteful number, since it uses less digits than its factorization.

2668126388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18027922 (or 18027920 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 50.

The square root of 2668126388 is about 51653.9097068170. The cubic root of 2668126388 is about 1386.9755311074.

The spelling of 2668126388 in words is "two billion, six hundred sixty-eight million, one hundred twenty-six thousand, three hundred eighty-eight".