40650285691 has 2 divisors, whose sum is σ = 40650285692. Its totient is φ = 40650285690.

The previous prime is 40650285677. The next prime is 40650285733. The reversal of 40650285691 is 19658205604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40650285691 - 2⁷ = 40650285563 is a prime.

It is not a weakly prime, because it can be changed into another prime (40650085691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20325142845 + 20325142846.

It is an arithmetic number, because the mean of its divisors is an integer number (20325142846).

Almost surely, 2^40650285691 is an apocalyptic number.

40650285691 is a deficient number, since it is larger than the sum of its proper divisors (1).

40650285691 is an equidigital number, since it uses as much as digits as its factorization.

40650285691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 40650285691 in words is "forty billion, six hundred fifty million, two hundred eighty-five thousand, six hundred ninety-one".