40635303643 has 24 divisors (see below), whose sum is σ = 48714342480. Its totient is φ = 33569195520.

The previous prime is 40635303637. The next prime is 40635303661. The reversal of 40635303643 is 34630353604.

It is not a de Polignac number, because 40635303643 - 2¹³ = 40635295451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40635303143) 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 in 23 ways as a sum of consecutive naturals, for example, 128196 + ... + 312577.

It is an arithmetic number, because the mean of its divisors is an integer number (2029764270).

Almost surely, 2^40635303643 is an apocalyptic number.

40635303643 is a deficient number, since it is larger than the sum of its proper divisors (8079038837).

40635303643 is a wasteful number, since it uses less digits than its factorization.

40635303643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440847 (or 440830 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 37.

The spelling of 40635303643 in words is "forty billion, six hundred thirty-five million, three hundred three thousand, six hundred forty-three".