40236541247437 has 2 divisors, whose sum is σ = 40236541247438. Its totient is φ = 40236541247436.

The previous prime is 40236541247423. The next prime is 40236541247521. The reversal of 40236541247437 is 73474214563204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25694872518121 + 14541668729316 = 5069011^2 + 3813354^2 .

It is a cyclic number.

It is not a de Polignac number, because 40236541247437 - 2³⁹ = 39686785433549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40236541247137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20118270623718 + 20118270623719.

It is an arithmetic number, because the mean of its divisors is an integer number (20118270623719).

Almost surely, 2^{40236541247437} is an apocalyptic number.

It is an amenable number.

40236541247437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40236541247437 is an equidigital number, since it uses as much as digits as its factorization.

40236541247437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 52.

The spelling of 40236541247437 in words is "forty trillion, two hundred thirty-six billion, five hundred forty-one million, two hundred forty-seven thousand, four hundred thirty-seven".