44216323513 has 2 divisors, whose sum is σ = 44216323514. Its totient is φ = 44216323512.

The previous prime is 44216323507. The next prime is 44216323579. The reversal of 44216323513 is 31532361244.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38334507264 + 5881816249 = 195792^2 + 76693^2 .

It is a cyclic number.

It is not a de Polignac number, because 44216323513 - 2¹⁷ = 44216192441 is a prime.

It is a super-2 number, since 2×44216323513² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44216320513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22108161756 + 22108161757.

It is an arithmetic number, because the mean of its divisors is an integer number (22108161757).

Almost surely, 2^44216323513 is an apocalyptic number.

It is an amenable number.

44216323513 is a deficient number, since it is larger than the sum of its proper divisors (1).

44216323513 is an equidigital number, since it uses as much as digits as its factorization.

44216323513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 34.

Adding to 44216323513 its reverse (31532361244), we get a palindrome (75748684757).

The spelling of 44216323513 in words is "forty-four billion, two hundred sixteen million, three hundred twenty-three thousand, five hundred thirteen".