44421774779 has 2 divisors, whose sum is σ = 44421774780. Its totient is φ = 44421774778.

The previous prime is 44421774769. The next prime is 44421774791. The reversal of 44421774779 is 97747712444.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44421774779 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (44421774769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22210887389 + 22210887390.

It is an arithmetic number, because the mean of its divisors is an integer number (22210887390).

Almost surely, 2^44421774779 is an apocalyptic number.

44421774779 is a deficient number, since it is larger than the sum of its proper divisors (1).

44421774779 is an equidigital number, since it uses as much as digits as its factorization.

44421774779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11063808, while the sum is 56.

The spelling of 44421774779 in words is "forty-four billion, four hundred twenty-one million, seven hundred seventy-four thousand, seven hundred seventy-nine".