40817236633 has 2 divisors, whose sum is σ = 40817236634. Its totient is φ = 40817236632.

The previous prime is 40817236613. The next prime is 40817236661. The reversal of 40817236633 is 33663271804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40807232064 + 10004569 = 202008^2 + 3163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40817236633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40817236633.

It is not a weakly prime, because it can be changed into another prime (40817236613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20408618316 + 20408618317.

It is an arithmetic number, because the mean of its divisors is an integer number (20408618317).

Almost surely, 2^40817236633 is an apocalyptic number.

It is an amenable number.

40817236633 is a deficient number, since it is larger than the sum of its proper divisors (1).

40817236633 is an equidigital number, since it uses as much as digits as its factorization.

40817236633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 40817236633 in words is "forty billion, eight hundred seventeen million, two hundred thirty-six thousand, six hundred thirty-three".