40859616349 has 2 divisors, whose sum is σ = 40859616350. Its totient is φ = 40859616348.

The previous prime is 40859616289. The next prime is 40859616353. The reversal of 40859616349 is 94361695804.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26565740100 + 14293876249 = 162990^2 + 119557^2 .

It is a cyclic number.

It is not a de Polignac number, because 40859616349 - 2¹³ = 40859608157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40859616349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40859616379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20429808174 + 20429808175.

It is an arithmetic number, because the mean of its divisors is an integer number (20429808175).

Almost surely, 2^40859616349 is an apocalyptic number.

It is an amenable number.

40859616349 is a deficient number, since it is larger than the sum of its proper divisors (1).

40859616349 is an equidigital number, since it uses as much as digits as its factorization.

40859616349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 40859616349 in words is "forty billion, eight hundred fifty-nine million, six hundred sixteen thousand, three hundred forty-nine".