44861643913 has 2 divisors, whose sum is σ = 44861643914. Its totient is φ = 44861643912.

The previous prime is 44861643901. The next prime is 44861643929. The reversal of 44861643913 is 31934616844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27409120249 + 17452523664 = 165557^2 + 132108^2 .

It is a cyclic number.

It is not a de Polignac number, because 44861643913 - 2⁵ = 44861643881 is a prime.

It is not a weakly prime, because it can be changed into another prime (44861646913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22430821956 + 22430821957.

It is an arithmetic number, because the mean of its divisors is an integer number (22430821957).

Almost surely, 2^44861643913 is an apocalyptic number.

It is an amenable number.

44861643913 is a deficient number, since it is larger than the sum of its proper divisors (1).

44861643913 is an equidigital number, since it uses as much as digits as its factorization.

44861643913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 49.

The spelling of 44861643913 in words is "forty-four billion, eight hundred sixty-one million, six hundred forty-three thousand, nine hundred thirteen".