6479640023 has 2 divisors, whose sum is σ = 6479640024. Its totient is φ = 6479640022.

The previous prime is 6479640001. The next prime is 6479640043. The reversal of 6479640023 is 3200469746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6479640023 - 2¹⁰ = 6479638999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6479640043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3239820011 + 3239820012.

It is an arithmetic number, because the mean of its divisors is an integer number (3239820012).

Almost surely, 2^6479640023 is an apocalyptic number.

6479640023 is a deficient number, since it is larger than the sum of its proper divisors (1).

6479640023 is an equidigital number, since it uses as much as digits as its factorization.

6479640023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 6479640023 is about 80496.2112338214. The cubic root of 6479640023 is about 1864.3049803332.

The spelling of 6479640023 in words is "six billion, four hundred seventy-nine million, six hundred forty thousand, twenty-three".