40163425755749 has 2 divisors, whose sum is σ = 40163425755750. Its totient is φ = 40163425755748.

The previous prime is 40163425755707. The next prime is 40163425755779. The reversal of 40163425755749 is 94755752436104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39582431182849 + 580994572900 = 6291457^2 + 762230^2 .

It is a cyclic number.

It is not a de Polignac number, because 40163425755749 - 2¹² = 40163425751653 is a prime.

It is a super-2 number, since 2×40163425755749² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40163425755691 and 40163425755700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40163425755779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20081712877874 + 20081712877875.

It is an arithmetic number, because the mean of its divisors is an integer number (20081712877875).

Almost surely, 2^{40163425755749} is an apocalyptic number.

It is an amenable number.

40163425755749 is a deficient number, since it is larger than the sum of its proper divisors (1).

40163425755749 is an equidigital number, since it uses as much as digits as its factorization.

40163425755749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008000, while the sum is 62.

The spelling of 40163425755749 in words is "forty trillion, one hundred sixty-three billion, four hundred twenty-five million, seven hundred fifty-five thousand, seven hundred forty-nine".