40236134413 has 2 divisors, whose sum is σ = 40236134414. Its totient is φ = 40236134412.

The previous prime is 40236134387. The next prime is 40236134447. The reversal of 40236134413 is 31443163204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32919384969 + 7316749444 = 181437^2 + 85538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40236134413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40236134713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20118067206 + 20118067207.

It is an arithmetic number, because the mean of its divisors is an integer number (20118067207).

Almost surely, 2^40236134413 is an apocalyptic number.

It is an amenable number.

40236134413 is a deficient number, since it is larger than the sum of its proper divisors (1).

40236134413 is an equidigital number, since it uses as much as digits as its factorization.

40236134413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 40236134413 its reverse (31443163204), we get a palindrome (71679297617).

The spelling of 40236134413 in words is "forty billion, two hundred thirty-six million, one hundred thirty-four thousand, four hundred thirteen".