40041020633 has 2 divisors, whose sum is σ = 40041020634. Its totient is φ = 40041020632.

The previous prime is 40041020611. The next prime is 40041020659. The reversal of 40041020633 is 33602014004.

It is a happy number.

40041020633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32308984009 + 7732036624 = 179747^2 + 87932^2 .

It is a cyclic number.

It is not a de Polignac number, because 40041020633 - 2²⁴ = 40024243417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40041020599 and 40041020608.

It is not a weakly prime, because it can be changed into another prime (40041020693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20020510316 + 20020510317.

It is an arithmetic number, because the mean of its divisors is an integer number (20020510317).

Almost surely, 2^40041020633 is an apocalyptic number.

It is an amenable number.

40041020633 is a deficient number, since it is larger than the sum of its proper divisors (1).

40041020633 is an equidigital number, since it uses as much as digits as its factorization.

40041020633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 40041020633 its reverse (33602014004), we get a palindrome (73643034637).

The spelling of 40041020633 in words is "forty billion, forty-one million, twenty thousand, six hundred thirty-three".