45020064643 has 4 divisors (see below), whose sum is σ = 45021438088. Its totient is φ = 45018691200.

The previous prime is 45020064641. The next prime is 45020064671. The reversal of 45020064643 is 34646002054.

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 45020064643 - 2¹ = 45020064641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45020064599 and 45020064608.

It is not an unprimeable number, because it can be changed into a prime (45020064641) 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, 636321 + ... + 703522.

It is an arithmetic number, because the mean of its divisors is an integer number (11255359522).

Almost surely, 2^45020064643 is an apocalyptic number.

45020064643 is a deficient number, since it is larger than the sum of its proper divisors (1373445).

45020064643 is a wasteful number, since it uses less digits than its factorization.

45020064643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373444.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 45020064643 its reverse (34646002054), we get a palindrome (79666066697).

The spelling of 45020064643 in words is "forty-five billion, twenty million, sixty-four thousand, six hundred forty-three".