44644554313 has 2 divisors, whose sum is σ = 44644554314. Its totient is φ = 44644554312.

The previous prime is 44644554287. The next prime is 44644554343. The reversal of 44644554313 is 31345544644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44606707209 + 37847104 = 211203^2 + 6152^2 .

It is a cyclic number.

It is not a de Polignac number, because 44644554313 - 2⁹ = 44644553801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44644554313.

It is not a weakly prime, because it can be changed into another prime (44644554343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22322277156 + 22322277157.

It is an arithmetic number, because the mean of its divisors is an integer number (22322277157).

Almost surely, 2^44644554313 is an apocalyptic number.

It is an amenable number.

44644554313 is a deficient number, since it is larger than the sum of its proper divisors (1).

44644554313 is an equidigital number, since it uses as much as digits as its factorization.

44644554313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382400, while the sum is 43.

The spelling of 44644554313 in words is "forty-four billion, six hundred forty-four million, five hundred fifty-four thousand, three hundred thirteen".