64426115304101 has 4 divisors (see below), whose sum is σ = 64434087854604. Its totient is φ = 64418142753600.

The previous prime is 64426115304097. The next prime is 64426115304107. The reversal of 64426115304101 is 10140351162446.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50948046084100 + 13478069220001 = 7137790^2 + 3671249^2 .

It is a cyclic number.

It is not a de Polignac number, because 64426115304101 - 2² = 64426115304097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64426115304107) 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, 3986263130 + ... + 3986279291.

It is an arithmetic number, because the mean of its divisors is an integer number (16108521963651).

Almost surely, 2^{64426115304101} is an apocalyptic number.

It is an amenable number.

64426115304101 is a deficient number, since it is larger than the sum of its proper divisors (7972550503).

64426115304101 is an equidigital number, since it uses as much as digits as its factorization.

64426115304101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7972550502.

The product of its (nonzero) digits is 69120, while the sum is 38.

Adding to 64426115304101 its reverse (10140351162446), we get a palindrome (74566466466547).

The spelling of 64426115304101 in words is "sixty-four trillion, four hundred twenty-six billion, one hundred fifteen million, three hundred four thousand, one hundred one".