64213611207123 has 128 divisors (see below), whose sum is σ = 103499300208640. Its totient is φ = 34644830837760.

The previous prime is 64213611207121. The next prime is 64213611207139. The reversal of 64213611207123 is 32170211631246.

It is not a de Polignac number, because 64213611207123 - 2¹ = 64213611207121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64213611207121) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2143368018 + ... + 2143397976.

It is an arithmetic number, because the mean of its divisors is an integer number (808588282880).

Almost surely, 2^{64213611207123} is an apocalyptic number.

64213611207123 is a deficient number, since it is larger than the sum of its proper divisors (39285689001517).

64213611207123 is a wasteful number, since it uses less digits than its factorization.

64213611207123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30537.

The product of its (nonzero) digits is 72576, while the sum is 39.

Adding to 64213611207123 its reverse (32170211631246), we get a palindrome (96383822838369).

The spelling of 64213611207123 in words is "sixty-four trillion, two hundred thirteen billion, six hundred eleven million, two hundred seven thousand, one hundred twenty-three".