5678662123 has 4 divisors (see below), whose sum is σ = 5684225008. Its totient is φ = 5673099240.

The previous prime is 5678662109. The next prime is 5678662151. The reversal of 5678662123 is 3212668765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3212668765 = 5 ⋅642533753.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5678662123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5678662103) 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, 2779911 + ... + 2781952.

It is an arithmetic number, because the mean of its divisors is an integer number (1421056252).

Almost surely, 2^5678662123 is an apocalyptic number.

5678662123 is a deficient number, since it is larger than the sum of its proper divisors (5562885).

5678662123 is a wasteful number, since it uses less digits than its factorization.

5678662123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562884.

The product of its digits is 725760, while the sum is 46.

The square root of 5678662123 is about 75356.8983106391. The cubic root of 5678662123 is about 1784.0841834693.

The spelling of 5678662123 in words is "five billion, six hundred seventy-eight million, six hundred sixty-two thousand, one hundred twenty-three".