40163423670949 has 2 divisors, whose sum is σ = 40163423670950. Its totient is φ = 40163423670948.

The previous prime is 40163423670907. The next prime is 40163423670971. The reversal of 40163423670949 is 94907632436104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32364641354049 + 7798782316900 = 5688993^2 + 2792630^2 .

It is a cyclic number.

It is not a de Polignac number, because 40163423670949 - 2²¹ = 40163421573797 is a prime.

It is a super-2 number, since 2×40163423670949² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40163423670893 and 40163423670902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40163423670049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20081711835474 + 20081711835475.

It is an arithmetic number, because the mean of its divisors is an integer number (20081711835475).

Almost surely, 2^{40163423670949} is an apocalyptic number.

It is an amenable number.

40163423670949 is a deficient number, since it is larger than the sum of its proper divisors (1).

40163423670949 is an equidigital number, since it uses as much as digits as its factorization.

40163423670949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 58.

The spelling of 40163423670949 in words is "forty trillion, one hundred sixty-three billion, four hundred twenty-three million, six hundred seventy thousand, nine hundred forty-nine".