40447770079 has 2 divisors, whose sum is σ = 40447770080. Its totient is φ = 40447770078.

The previous prime is 40447770059. The next prime is 40447770089. The reversal of 40447770079 is 97007774404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40447770079 - 2⁹ = 40447769567 is a prime.

It is a congruent number.

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, 20223885039 + 20223885040.

It is an arithmetic number, because the mean of its divisors is an integer number (20223885040).

Almost surely, 2^40447770079 is an apocalyptic number.

40447770079 is a deficient number, since it is larger than the sum of its proper divisors (1).

40447770079 is an equidigital number, since it uses as much as digits as its factorization.

40447770079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382976, while the sum is 49.

The spelling of 40447770079 in words is "forty billion, four hundred forty-seven million, seven hundred seventy thousand, seventy-nine".