544439009977 has 2 divisors, whose sum is σ = 544439009978. Its totient is φ = 544439009976.

The previous prime is 544439009953. The next prime is 544439010019. The reversal of 544439009977 is 779900934445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491659001856 + 52780008121 = 701184^2 + 229739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544439009977 is a prime.

It is not a weakly prime, because it can be changed into another prime (544439009677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272219504988 + 272219504989.

It is an arithmetic number, because the mean of its divisors is an integer number (272219504989).

Almost surely, 2^544439009977 is an apocalyptic number.

It is an amenable number.

544439009977 is a deficient number, since it is larger than the sum of its proper divisors (1).

544439009977 is an equidigital number, since it uses as much as digits as its factorization.

544439009977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34292160, while the sum is 61.

The spelling of 544439009977 in words is "five hundred forty-four billion, four hundred thirty-nine million, nine thousand, nine hundred seventy-seven".