6442603123 has 8 divisors (see below), whose sum is σ = 7030273536. Its totient is φ = 5855262600.

The previous prime is 6442603121. The next prime is 6442603151. The reversal of 6442603123 is 3213062446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6442603123 - 2¹ = 6442603121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6442603121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40711 + ... + 120592.

It is an arithmetic number, because the mean of its divisors is an integer number (878784192).

Almost surely, 2^6442603123 is an apocalyptic number.

6442603123 is a deficient number, since it is larger than the sum of its proper divisors (587670413).

6442603123 is a wasteful number, since it uses less digits than its factorization.

6442603123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164945.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 6442603123 is about 80265.8278659107. The cubic root of 6442603123 is about 1860.7461379039.

Adding to 6442603123 its reverse (3213062446), we get a palindrome (9655665569).

The spelling of 6442603123 in words is "six billion, four hundred forty-two million, six hundred three thousand, one hundred twenty-three".