40135673317 has 2 divisors, whose sum is σ = 40135673318. Its totient is φ = 40135673316.

The previous prime is 40135673243. The next prime is 40135673323. The reversal of 40135673317 is 71337653104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22372381476 + 17763291841 = 149574^2 + 133279^2 .

It is a cyclic number.

It is not a de Polignac number, because 40135673317 - 2¹⁹ = 40135149029 is a prime.

It is a super-2 number, since 2×40135673317² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40135673317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40135673327) 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, 20067836658 + 20067836659.

It is an arithmetic number, because the mean of its divisors is an integer number (20067836659).

Almost surely, 2^40135673317 is an apocalyptic number.

It is an amenable number.

40135673317 is a deficient number, since it is larger than the sum of its proper divisors (1).

40135673317 is an equidigital number, since it uses as much as digits as its factorization.

40135673317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 40.

The spelling of 40135673317 in words is "forty billion, one hundred thirty-five million, six hundred seventy-three thousand, three hundred seventeen".