400413316255709 has 2 divisors, whose sum is σ = 400413316255710. Its totient is φ = 400413316255708.

The previous prime is 400413316255681. The next prime is 400413316255747. The reversal of 400413316255709 is 907552613314004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227783858100100 + 172629458155609 = 15092510^2 + 13138853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400413316255709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400413316255769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200206658127854 + 200206658127855.

It is an arithmetic number, because the mean of its divisors is an integer number (200206658127855).

Almost surely, 2^{400413316255709} is an apocalyptic number.

It is an amenable number.

400413316255709 is a deficient number, since it is larger than the sum of its proper divisors (1).

400413316255709 is an equidigital number, since it uses as much as digits as its factorization.

400413316255709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 400413316255709 in words is "four hundred trillion, four hundred thirteen billion, three hundred sixteen million, two hundred fifty-five thousand, seven hundred nine".