44780546689 has 2 divisors, whose sum is σ = 44780546690. Its totient is φ = 44780546688.

The previous prime is 44780546687. The next prime is 44780546747. The reversal of 44780546689 is 98664508744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42804299664 + 1976247025 = 206892^2 + 44455^2 .

It is a cyclic number.

It is not a de Polignac number, because 44780546689 - 2¹ = 44780546687 is a prime.

Together with 44780546687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (44780546687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22390273344 + 22390273345.

It is an arithmetic number, because the mean of its divisors is an integer number (22390273345).

Almost surely, 2^44780546689 is an apocalyptic number.

It is an amenable number.

44780546689 is a deficient number, since it is larger than the sum of its proper divisors (1).

44780546689 is an equidigital number, since it uses as much as digits as its factorization.

44780546689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46448640, while the sum is 61.

It can be divided in two parts, 447805 and 46689, that added together give a palindrome (494494).

The spelling of 44780546689 in words is "forty-four billion, seven hundred eighty million, five hundred forty-six thousand, six hundred eighty-nine".