40736535691 has 2 divisors, whose sum is σ = 40736535692. Its totient is φ = 40736535690.

The previous prime is 40736535601. The next prime is 40736535701. The reversal of 40736535691 is 19653563704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40736535691 - 2¹⁹ = 40736011403 is a prime.

It is not a weakly prime, because it can be changed into another prime (40736535601) 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, 20368267845 + 20368267846.

It is an arithmetic number, because the mean of its divisors is an integer number (20368267846).

Almost surely, 2^40736535691 is an apocalyptic number.

40736535691 is a deficient number, since it is larger than the sum of its proper divisors (1).

40736535691 is an equidigital number, since it uses as much as digits as its factorization.

40736535691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 40736535691 in words is "forty billion, seven hundred thirty-six million, five hundred thirty-five thousand, six hundred ninety-one".