40603630609 has 2 divisors, whose sum is σ = 40603630610. Its totient is φ = 40603630608.

The previous prime is 40603630601. The next prime is 40603630633. The reversal of 40603630609 is 90603630604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36060870609 + 4542760000 = 189897^2 + 67400^2 .

It is a cyclic number.

It is not a de Polignac number, because 40603630609 - 2³ = 40603630601 is a prime.

It is not a weakly prime, because it can be changed into another prime (40603630601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20301815304 + 20301815305.

It is an arithmetic number, because the mean of its divisors is an integer number (20301815305).

Almost surely, 2^40603630609 is an apocalyptic number.

It is an amenable number.

40603630609 is a deficient number, since it is larger than the sum of its proper divisors (1).

40603630609 is an equidigital number, since it uses as much as digits as its factorization.

40603630609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 37.

It can be divided in two parts, 406036 and 30609, that added together give a triangular number (436645 = T₉₃₄).

The spelling of 40603630609 in words is "forty billion, six hundred three million, six hundred thirty thousand, six hundred nine".