40236005247541 has 2 divisors, whose sum is σ = 40236005247542. Its totient is φ = 40236005247540.

The previous prime is 40236005247533. The next prime is 40236005247589. The reversal of 40236005247541 is 14574250063204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25017463048516 + 15218542199025 = 5001746^2 + 3901095^2 .

It is a cyclic number.

It is not a de Polignac number, because 40236005247541 - 2³ = 40236005247533 is a prime.

It is a super-2 number, since 2×40236005247541² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40236005248541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20118002623770 + 20118002623771.

It is an arithmetic number, because the mean of its divisors is an integer number (20118002623771).

Almost surely, 2^{40236005247541} is an apocalyptic number.

It is an amenable number.

40236005247541 is a deficient number, since it is larger than the sum of its proper divisors (1).

40236005247541 is an equidigital number, since it uses as much as digits as its factorization.

40236005247541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 40236005247541 in words is "forty trillion, two hundred thirty-six billion, five million, two hundred forty-seven thousand, five hundred forty-one".