40216541773 has 2 divisors, whose sum is σ = 40216541774. Its totient is φ = 40216541772.

The previous prime is 40216541753. The next prime is 40216541779. The reversal of 40216541773 is 37714561204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40209072484 + 7469289 = 200522^2 + 2733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40216541773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40216541779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20108270886 + 20108270887.

It is an arithmetic number, because the mean of its divisors is an integer number (20108270887).

Almost surely, 2^40216541773 is an apocalyptic number.

It is an amenable number.

40216541773 is a deficient number, since it is larger than the sum of its proper divisors (1).

40216541773 is an equidigital number, since it uses as much as digits as its factorization.

40216541773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 40216541773 in words is "forty billion, two hundred sixteen million, five hundred forty-one thousand, seven hundred seventy-three".