6500000123 has 8 divisors (see below), whose sum is σ = 6965923488. Its totient is φ = 6049353024.

The previous prime is 6500000107. The next prime is 6500000141. The reversal of 6500000123 is 3210000056.

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

It is a cyclic number.

It is not a de Polignac number, because 6500000123 - 2⁴ = 6500000107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6500000153) 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 7 ways as a sum of consecutive naturals, for example, 3818186 + ... + 3819887.

It is an arithmetic number, because the mean of its divisors is an integer number (870740436).

Almost surely, 2^6500000123 is an apocalyptic number.

6500000123 is a deficient number, since it is larger than the sum of its proper divisors (465923365).

6500000123 is a wasteful number, since it uses less digits than its factorization.

6500000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638133.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 6500000123 is about 80622.5782457991. The cubic root of 6500000123 is about 1866.2555901804.

Adding to 6500000123 its reverse (3210000056), we get a palindrome (9710000179).

The spelling of 6500000123 in words is "six billion, five hundred million, one hundred twenty-three", and thus it is an aban number.