64336038233 has 4 divisors (see below), whose sum is σ = 66554522340. Its totient is φ = 62117554128.

The previous prime is 64336038209. The next prime is 64336038241. The reversal of 64336038233 is 33283063346.

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 14826228169 + 49509810064 = 121763^2 + 222508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64336038233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64336038733) 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, 1109242010 + ... + 1109242067.

It is an arithmetic number, because the mean of its divisors is an integer number (16638630585).

Almost surely, 2^64336038233 is an apocalyptic number.

It is an amenable number.

64336038233 is a deficient number, since it is larger than the sum of its proper divisors (2218484107).

64336038233 is a wasteful number, since it uses less digits than its factorization.

64336038233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218484106.

The product of its (nonzero) digits is 559872, while the sum is 41.

The spelling of 64336038233 in words is "sixty-four billion, three hundred thirty-six million, thirty-eight thousand, two hundred thirty-three".