5678660123 has 4 divisors (see below), whose sum is σ = 5687437680. Its totient is φ = 5669882568.

The previous prime is 5678660101. The next prime is 5678660147. The reversal of 5678660123 is 3210668765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3210668765 = 5 ⋅642133753.

It is a cyclic number.

It is not a de Polignac number, because 5678660123 - 2⁸ = 5678659867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5678660173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4387808 + ... + 4389101.

It is an arithmetic number, because the mean of its divisors is an integer number (1421859420).

Almost surely, 2^5678660123 is an apocalyptic number.

5678660123 is a deficient number, since it is larger than the sum of its proper divisors (8777557).

5678660123 is an equidigital number, since it uses as much as digits as its factorization.

5678660123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8777556.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 5678660123 is about 75356.8850404527. The cubic root of 5678660123 is about 1784.0839740203.

The spelling of 5678660123 in words is "five billion, six hundred seventy-eight million, six hundred sixty thousand, one hundred twenty-three".