64045313533 has 4 divisors (see below), whose sum is σ = 64182456000. Its totient is φ = 63908171068.

The previous prime is 64045313483. The next prime is 64045313539. The reversal of 64045313533 is 33531354046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33531354046 = 2 ⋅16765677023.

It is a cyclic number.

It is not a de Polignac number, because 64045313533 - 2¹³ = 64045305341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64045313492 and 64045313501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64045313539) 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, 68570533 + ... + 68571466.

It is an arithmetic number, because the mean of its divisors is an integer number (16045614000).

Almost surely, 2^64045313533 is an apocalyptic number.

It is an amenable number.

64045313533 is a deficient number, since it is larger than the sum of its proper divisors (137142467).

64045313533 is a wasteful number, since it uses less digits than its factorization.

64045313533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137142466.

The product of its (nonzero) digits is 194400, while the sum is 37.

Adding to 64045313533 its reverse (33531354046), we get a palindrome (97576667579).

The spelling of 64045313533 in words is "sixty-four billion, forty-five million, three hundred thirteen thousand, five hundred thirty-three".