244557942709 has 2 divisors, whose sum is σ = 244557942710. Its totient is φ = 244557942708.

The previous prime is 244557942697. The next prime is 244557942791. The reversal of 244557942709 is 907249755442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194549802084 + 50008140625 = 441078^2 + 223625^2 .

It is a cyclic number.

It is not a de Polignac number, because 244557942709 - 2¹⁹ = 244557418421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244557942509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122278971354 + 122278971355.

It is an arithmetic number, because the mean of its divisors is an integer number (122278971355).

Almost surely, 2^244557942709 is an apocalyptic number.

It is an amenable number.

244557942709 is a deficient number, since it is larger than the sum of its proper divisors (1).

244557942709 is an equidigital number, since it uses as much as digits as its factorization.

244557942709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 244557942709 in words is "two hundred forty-four billion, five hundred fifty-seven million, nine hundred forty-two thousand, seven hundred nine".