40943599783693 has 2 divisors, whose sum is σ = 40943599783694. Its totient is φ = 40943599783692.

The previous prime is 40943599783673. The next prime is 40943599783747. The reversal of 40943599783693 is 39638799534904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37184603934724 + 3758995848969 = 6097918^2 + 1938813^2 .

It is a cyclic number.

It is not a de Polignac number, because 40943599783693 - 2⁵ = 40943599783661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40943599783673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20471799891846 + 20471799891847.

It is an arithmetic number, because the mean of its divisors is an integer number (20471799891847).

Almost surely, 2^{40943599783693} is an apocalyptic number.

It is an amenable number.

40943599783693 is a deficient number, since it is larger than the sum of its proper divisors (1).

40943599783693 is an equidigital number, since it uses as much as digits as its factorization.

40943599783693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4761711360, while the sum is 79.

The spelling of 40943599783693 in words is "forty trillion, nine hundred forty-three billion, five hundred ninety-nine million, seven hundred eighty-three thousand, six hundred ninety-three".