40365366913 has 2 divisors, whose sum is σ = 40365366914. Its totient is φ = 40365366912.

The previous prime is 40365366911. The next prime is 40365366953. The reversal of 40365366913 is 31966356304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40059221904 + 306145009 = 200148^2 + 17497^2 .

It is a cyclic number.

It is not a de Polignac number, because 40365366913 - 2¹ = 40365366911 is a prime.

It is a super-2 number, since 2×40365366913² (a number of 22 digits) contains 22 as substring.

Together with 40365366911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40365366911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20182683456 + 20182683457.

It is an arithmetic number, because the mean of its divisors is an integer number (20182683457).

Almost surely, 2^40365366913 is an apocalyptic number.

It is an amenable number.

40365366913 is a deficient number, since it is larger than the sum of its proper divisors (1).

40365366913 is an equidigital number, since it uses as much as digits as its factorization.

40365366913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1049760, while the sum is 46.

The spelling of 40365366913 in words is "forty billion, three hundred sixty-five million, three hundred sixty-six thousand, nine hundred thirteen".