44641306819 has 2 divisors, whose sum is σ = 44641306820. Its totient is φ = 44641306818.

The previous prime is 44641306817. The next prime is 44641306849. The reversal of 44641306819 is 91860314644.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44641306819 - 2¹ = 44641306817 is a prime.

It is a super-2 number, since 2×44641306819² (a number of 22 digits) contains 22 as substring.

Together with 44641306817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (44641306817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22320653409 + 22320653410.

It is an arithmetic number, because the mean of its divisors is an integer number (22320653410).

Almost surely, 2^44641306819 is an apocalyptic number.

44641306819 is a deficient number, since it is larger than the sum of its proper divisors (1).

44641306819 is an equidigital number, since it uses as much as digits as its factorization.

44641306819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 44641306819 in words is "forty-four billion, six hundred forty-one million, three hundred six thousand, eight hundred nineteen".