40502534993 has 2 divisors, whose sum is σ = 40502534994. Its totient is φ = 40502534992.

The previous prime is 40502534981. The next prime is 40502535019. The reversal of 40502534993 is 39943520504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38521127824 + 1981407169 = 196268^2 + 44513^2 .

It is a cyclic number.

It is not a de Polignac number, because 40502534993 - 2⁴ = 40502534977 is a prime.

It is not a weakly prime, because it can be changed into another prime (40502534923) 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, 20251267496 + 20251267497.

It is an arithmetic number, because the mean of its divisors is an integer number (20251267497).

Almost surely, 2^40502534993 is an apocalyptic number.

It is an amenable number.

40502534993 is a deficient number, since it is larger than the sum of its proper divisors (1).

40502534993 is an equidigital number, since it uses as much as digits as its factorization.

40502534993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 40502534993 in words is "forty billion, five hundred two million, five hundred thirty-four thousand, nine hundred ninety-three".