40683738541 has 2 divisors, whose sum is σ = 40683738542. Its totient is φ = 40683738540.

The previous prime is 40683738533. The next prime is 40683738629. The reversal of 40683738541 is 14583738604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40654253641 + 29484900 = 201629^2 + 5430^2 .

It is a cyclic number.

It is not a de Polignac number, because 40683738541 - 2³ = 40683738533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40683738521) 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, 20341869270 + 20341869271.

It is an arithmetic number, because the mean of its divisors is an integer number (20341869271).

Almost surely, 2^40683738541 is an apocalyptic number.

It is an amenable number.

40683738541 is a deficient number, since it is larger than the sum of its proper divisors (1).

40683738541 is an equidigital number, since it uses as much as digits as its factorization.

40683738541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 40683738541 in words is "forty billion, six hundred eighty-three million, seven hundred thirty-eight thousand, five hundred forty-one".