64242643103 has 4 divisors (see below), whose sum is σ = 64243413408. Its totient is φ = 64241872800.

The previous prime is 64242643097. The next prime is 64242643159. The reversal of 64242643103 is 30134624246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64242643103 - 2¹² = 64242639007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64242643303) 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, 242423 + ... + 432728.

It is an arithmetic number, because the mean of its divisors is an integer number (16060853352).

Almost surely, 2^64242643103 is an apocalyptic number.

64242643103 is a deficient number, since it is larger than the sum of its proper divisors (770305).

64242643103 is an equidigital number, since it uses as much as digits as its factorization.

64242643103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770304.

The product of its (nonzero) digits is 82944, while the sum is 35.

The spelling of 64242643103 in words is "sixty-four billion, two hundred forty-two million, six hundred forty-three thousand, one hundred three".