44645978380799 has 2 divisors, whose sum is σ = 44645978380800. Its totient is φ = 44645978380798.

The previous prime is 44645978380777. The next prime is 44645978380813. The reversal of 44645978380799 is 99708387954644.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44645978380799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44645978380709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22322989190399 + 22322989190400.

It is an arithmetic number, because the mean of its divisors is an integer number (22322989190400).

Almost surely, 2^{44645978380799} is an apocalyptic number.

44645978380799 is a deficient number, since it is larger than the sum of its proper divisors (1).

44645978380799 is an equidigital number, since it uses as much as digits as its factorization.

44645978380799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13168189440, while the sum is 83.

The spelling of 44645978380799 in words is "forty-four trillion, six hundred forty-five billion, nine hundred seventy-eight million, three hundred eighty thousand, seven hundred ninety-nine".