40437717713 has 2 divisors, whose sum is σ = 40437717714. Its totient is φ = 40437717712.

The previous prime is 40437717679. The next prime is 40437717797. The reversal of 40437717713 is 31771773404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39248364544 + 1189353169 = 198112^2 + 34487^2 .

It is a cyclic number.

It is not a de Polignac number, because 40437717713 - 2¹⁴ = 40437701329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40437710713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20218858856 + 20218858857.

It is an arithmetic number, because the mean of its divisors is an integer number (20218858857).

Almost surely, 2^40437717713 is an apocalyptic number.

It is an amenable number.

40437717713 is a deficient number, since it is larger than the sum of its proper divisors (1).

40437717713 is an equidigital number, since it uses as much as digits as its factorization.

40437717713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345744, while the sum is 44.

The spelling of 40437717713 in words is "forty billion, four hundred thirty-seven million, seven hundred seventeen thousand, seven hundred thirteen".