2668886121 has 16 divisors (see below), whose sum is σ = 4050800640. Its totient is φ = 1547179920.

The previous prime is 2668886089. The next prime is 2668886149. The reversal of 2668886121 is 1216888662.

It is a happy number.

It is not a de Polignac number, because 2668886121 - 2⁵ = 2668886089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2668886161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1757401 + ... + 1758918.

It is an arithmetic number, because the mean of its divisors is an integer number (253175040).

Almost surely, 2^2668886121 is an apocalyptic number.

It is an amenable number.

2668886121 is a deficient number, since it is larger than the sum of its proper divisors (1381914519).

2668886121 is a wasteful number, since it uses less digits than its factorization.

2668886121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516356.

The product of its digits is 442368, while the sum is 48.

The square root of 2668886121 is about 51661.2632540088. The cubic root of 2668886121 is about 1387.1071629380.

The spelling of 2668886121 in words is "two billion, six hundred sixty-eight million, eight hundred eighty-six thousand, one hundred twenty-one".