40605740772637 has 2 divisors, whose sum is σ = 40605740772638. Its totient is φ = 40605740772636.

The previous prime is 40605740772617. The next prime is 40605740772643. The reversal of 40605740772637 is 73627704750604.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40434261134436 + 171479638201 = 6358794^2 + 414101^2 .

It is a cyclic number.

It is not a de Polignac number, because 40605740772637 - 2¹⁵ = 40605740739869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40605740772607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20302870386318 + 20302870386319.

It is an arithmetic number, because the mean of its divisors is an integer number (20302870386319).

Almost surely, 2^{40605740772637} is an apocalyptic number.

It is an amenable number.

40605740772637 is a deficient number, since it is larger than the sum of its proper divisors (1).

40605740772637 is an equidigital number, since it uses as much as digits as its factorization.

40605740772637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41489280, while the sum is 58.

The spelling of 40605740772637 in words is "forty trillion, six hundred five billion, seven hundred forty million, seven hundred seventy-two thousand, six hundred thirty-seven".