2154102668 has 24 divisors (see below), whose sum is σ = 3815120400. Its totient is φ = 1064107008.

The previous prime is 2154102659. The next prime is 2154102679. The reversal of 2154102668 is 8662014512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235688 + ... + 244656.

It is an arithmetic number, because the mean of its divisors is an integer number (158963350).

Almost surely, 2^2154102668 is an apocalyptic number.

It is an amenable number.

2154102668 is a deficient number, since it is larger than the sum of its proper divisors (1661017732).

2154102668 is a wasteful number, since it uses less digits than its factorization.

2154102668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9689 (or 9687 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2154102668 is about 46412.3115994022. The cubic root of 2154102668 is about 1291.4833142800.

The spelling of 2154102668 in words is "two billion, one hundred fifty-four million, one hundred two thousand, six hundred sixty-eight".