40426641317 has 2 divisors, whose sum is σ = 40426641318. Its totient is φ = 40426641316.

The previous prime is 40426641313. The next prime is 40426641361. The reversal of 40426641317 is 71314662404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29704867201 + 10721774116 = 172351^2 + 103546^2 .

It is a cyclic number.

It is not a de Polignac number, because 40426641317 - 2² = 40426641313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40426641313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20213320658 + 20213320659.

It is an arithmetic number, because the mean of its divisors is an integer number (20213320659).

Almost surely, 2^40426641317 is an apocalyptic number.

It is an amenable number.

40426641317 is a deficient number, since it is larger than the sum of its proper divisors (1).

40426641317 is an equidigital number, since it uses as much as digits as its factorization.

40426641317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 40426641317 in words is "forty billion, four hundred twenty-six million, six hundred forty-one thousand, three hundred seventeen".