40447770089 has 2 divisors, whose sum is σ = 40447770090. Its totient is φ = 40447770088.

The previous prime is 40447770079. The next prime is 40447770109. The reversal of 40447770089 is 98007774404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23236429225 + 17211340864 = 152435^2 + 131192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40447770089 is a prime.

It is not a weakly prime, because it can be changed into another prime (40447770049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20223885044 + 20223885045.

It is an arithmetic number, because the mean of its divisors is an integer number (20223885045).

Almost surely, 2^40447770089 is an apocalyptic number.

It is an amenable number.

40447770089 is a deficient number, since it is larger than the sum of its proper divisors (1).

40447770089 is an equidigital number, since it uses as much as digits as its factorization.

40447770089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1580544, while the sum is 50.

The spelling of 40447770089 in words is "forty billion, four hundred forty-seven million, seven hundred seventy thousand, eighty-nine".