44423655387829 has 2 divisors, whose sum is σ = 44423655387830. Its totient is φ = 44423655387828.

The previous prime is 44423655387791. The next prime is 44423655387907. The reversal of 44423655387829 is 92878355632444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40897278429604 + 3526376958225 = 6395098^2 + 1877865^2 .

It is a cyclic number.

It is not a de Polignac number, because 44423655387829 - 2⁹ = 44423655387317 is a prime.

It is a super-2 number, since 2×44423655387829² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44423655387229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22211827693914 + 22211827693915.

It is an arithmetic number, because the mean of its divisors is an integer number (22211827693915).

Almost surely, 2^{44423655387829} is an apocalyptic number.

It is an amenable number.

44423655387829 is a deficient number, since it is larger than the sum of its proper divisors (1).

44423655387829 is an equidigital number, since it uses as much as digits as its factorization.

44423655387829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1393459200, while the sum is 70.

The spelling of 44423655387829 in words is "forty-four trillion, four hundred twenty-three billion, six hundred fifty-five million, three hundred eighty-seven thousand, eight hundred twenty-nine".