40326880709 has 2 divisors, whose sum is σ = 40326880710. Its totient is φ = 40326880708.

The previous prime is 40326880703. The next prime is 40326880721. The reversal of 40326880709 is 90708862304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28595824609 + 11731056100 = 169103^2 + 108310^2 .

It is a cyclic number.

It is not a de Polignac number, because 40326880709 - 2²⁰ = 40325832133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40326880703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20163440354 + 20163440355.

It is an arithmetic number, because the mean of its divisors is an integer number (20163440355).

Almost surely, 2^40326880709 is an apocalyptic number.

It is an amenable number.

40326880709 is a deficient number, since it is larger than the sum of its proper divisors (1).

40326880709 is an equidigital number, since it uses as much as digits as its factorization.

40326880709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 40326880709 in words is "forty billion, three hundred twenty-six million, eight hundred eighty thousand, seven hundred nine".