44347145813 has 2 divisors, whose sum is σ = 44347145814. Its totient is φ = 44347145812.

The previous prime is 44347145797. The next prime is 44347145819. The reversal of 44347145813 is 31854174344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24062834884 + 20284310929 = 155122^2 + 142423^2 .

It is a cyclic number.

It is not a de Polignac number, because 44347145813 - 2⁴ = 44347145797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44347145819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22173572906 + 22173572907.

It is an arithmetic number, because the mean of its divisors is an integer number (22173572907).

Almost surely, 2^44347145813 is an apocalyptic number.

It is an amenable number.

44347145813 is a deficient number, since it is larger than the sum of its proper divisors (1).

44347145813 is an equidigital number, since it uses as much as digits as its factorization.

44347145813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 44.

The spelling of 44347145813 in words is "forty-four billion, three hundred forty-seven million, one hundred forty-five thousand, eight hundred thirteen".