44784806861 has 2 divisors, whose sum is σ = 44784806862. Its totient is φ = 44784806860.

The previous prime is 44784806849. The next prime is 44784806863. The reversal of 44784806861 is 16860848744.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26497653961 + 18287152900 = 162781^2 + 135230^2 .

It is a cyclic number.

It is not a de Polignac number, because 44784806861 - 2¹⁰ = 44784805837 is a prime.

It is a super-3 number, since 3×44784806861³ (a number of 33 digits) contains 333 as substring.

Together with 44784806863, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 44784806797 and 44784806806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44784806863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22392403430 + 22392403431.

It is an arithmetic number, because the mean of its divisors is an integer number (22392403431).

Almost surely, 2^44784806861 is an apocalyptic number.

It is an amenable number.

44784806861 is a deficient number, since it is larger than the sum of its proper divisors (1).

44784806861 is an equidigital number, since it uses as much as digits as its factorization.

44784806861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8257536, while the sum is 56.

The spelling of 44784806861 in words is "forty-four billion, seven hundred eighty-four million, eight hundred six thousand, eight hundred sixty-one".